21538569304

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:833

約数の個数: 128

約数和(自身を含む): 47987251200

約数和(自身を除く): 26448681896

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 113, 139, 188, 226, 278, 329, 376, 452, 521, 556, 658, 791, 904, 973, 1042, 1112, 1316, 1582, 1946, 2084, 2632, 3164, 3647, 3892, 4168, 5311, 6328, 6533, 7294, 7784, 10622, 13066, 14588, 15707, 21244, 24487, 26132, 29176, 31414, 37177, 42488, 45731, 48974, 52264, 58873, 62828, 72419, 74354, 91462, 97948, 109949, 117746, 125656, 144838, 148708, 171409, 182924, 195896, 219898, 235492, 289676, 297416, 342818, 365848, 412111, 439796, 470984, 506933, 579352, 685636, 738229, 824222, 879592, 1013866, 1371272, 1476458, 1648444, 2027732, 2767031, 2952916, 3296888, 3403693, 4055464, 5167603, 5534062, 5905832, 6807386, 8183347, 10335206, 11068124, 13614772, 16366694, 19369217, 20670412, 22136248, 23825851, 27229544, 32733388, 38738434, 41340824, 47651702, 57283429, 65466776, 77476868, 95303404, 114566858, 154953736, 190606808, 229133716, 384617309, 458267432, 769234618, 1538469236, 2692321163, 3076938472, 5384642326, 10769284652, 21538569304]

約数ペア:

[(1, 21538569304), (2, 10769284652), (4, 5384642326), (7, 3076938472), (8, 2692321163), (14, 1538469236), (28, 769234618), (47, 458267432), (56, 384617309), (94, 229133716), (113, 190606808), (139, 154953736), (188, 114566858), (226, 95303404), (278, 77476868), (329, 65466776), (376, 57283429), (452, 47651702), (521, 41340824), (556, 38738434), (658, 32733388), (791, 27229544), (904, 23825851), (973, 22136248), (1042, 20670412), (1112, 19369217), (1316, 16366694), (1582, 13614772), (1946, 11068124), (2084, 10335206), (2632, 8183347), (3164, 6807386), (3647, 5905832), (3892, 5534062), (4168, 5167603), (5311, 4055464), (6328, 3403693), (6533, 3296888), (7294, 2952916), (7784, 2767031), (10622, 2027732), (13066, 1648444), (14588, 1476458), (15707, 1371272), (21244, 1013866), (24487, 879592), (26132, 824222), (29176, 738229), (31414, 685636), (37177, 579352), (42488, 506933), (45731, 470984), (48974, 439796), (52264, 412111), (58873, 365848), (62828, 342818), (72419, 297416), (74354, 289676), (91462, 235492), (97948, 219898), (109949, 195896), (117746, 182924), (125656, 171409), (144838, 148708)]