21538776

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:169

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 43779624

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 41, 42, 53, 56, 59, 82, 84, 106, 118, 123, 159, 164, 168, 177, 212, 236, 246, 287, 318, 328, 354, 371, 413, 424, 472, 492, 574, 636, 708, 742, 826, 861, 984, 1113, 1148, 1239, 1272, 1416, 1484, 1652, 1722, 2173, 2226, 2296, 2419, 2478, 2968, 3127, 3304, 3444, 4346, 4452, 4838, 4956, 6254, 6519, 6888, 7257, 8692, 8904, 9381, 9676, 9912, 12508, 13038, 14514, 15211, 16933, 17384, 18762, 19352, 21889, 25016, 26076, 29028, 30422, 33866, 37524, 43778, 45633, 50799, 52152, 58056, 60844, 65667, 67732, 75048, 87556, 91266, 101598, 121688, 128207, 131334, 135464, 175112, 182532, 203196, 256414, 262668, 365064, 384621, 406392, 512828, 525336, 769242, 897449, 1025656, 1538484, 1794898, 2692347, 3076968, 3589796, 5384694, 7179592, 10769388, 21538776]

約数ペア:

[(1, 21538776), (2, 10769388), (3, 7179592), (4, 5384694), (6, 3589796), (7, 3076968), (8, 2692347), (12, 1794898), (14, 1538484), (21, 1025656), (24, 897449), (28, 769242), (41, 525336), (42, 512828), (53, 406392), (56, 384621), (59, 365064), (82, 262668), (84, 256414), (106, 203196), (118, 182532), (123, 175112), (159, 135464), (164, 131334), (168, 128207), (177, 121688), (212, 101598), (236, 91266), (246, 87556), (287, 75048), (318, 67732), (328, 65667), (354, 60844), (371, 58056), (413, 52152), (424, 50799), (472, 45633), (492, 43778), (574, 37524), (636, 33866), (708, 30422), (742, 29028), (826, 26076), (861, 25016), (984, 21889), (1113, 19352), (1148, 18762), (1239, 17384), (1272, 16933), (1416, 15211), (1484, 14514), (1652, 13038), (1722, 12508), (2173, 9912), (2226, 9676), (2296, 9381), (2419, 8904), (2478, 8692), (2968, 7257), (3127, 6888), (3304, 6519), (3444, 6254), (4346, 4956), (4452, 4838)]