21616686

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:167

約数の個数: 128

約数和(自身を含む): 60963840

約数和(自身を除く): 39347154

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 53, 54, 63, 78, 83, 91, 106, 117, 126, 159, 166, 182, 189, 234, 249, 273, 318, 351, 371, 378, 477, 498, 546, 581, 689, 702, 742, 747, 819, 954, 1079, 1113, 1162, 1378, 1431, 1494, 1638, 1743, 2067, 2158, 2226, 2241, 2457, 2862, 3237, 3339, 3486, 4134, 4399, 4482, 4823, 4914, 5229, 6201, 6474, 6678, 7553, 8798, 9646, 9711, 10017, 10458, 12402, 13197, 14469, 15106, 15687, 18603, 19422, 20034, 22659, 26394, 28938, 29133, 30793, 31374, 37206, 39591, 43407, 45318, 57187, 58266, 61586, 67977, 79182, 86814, 92379, 114374, 118773, 130221, 135954, 171561, 184758, 203931, 237546, 260442, 277137, 343122, 400309, 407862, 514683, 554274, 800618, 831411, 1029366, 1200927, 1544049, 1662822, 2401854, 3088098, 3602781, 7205562, 10808343, 21616686]

約数ペア:

[(1, 21616686), (2, 10808343), (3, 7205562), (6, 3602781), (7, 3088098), (9, 2401854), (13, 1662822), (14, 1544049), (18, 1200927), (21, 1029366), (26, 831411), (27, 800618), (39, 554274), (42, 514683), (53, 407862), (54, 400309), (63, 343122), (78, 277137), (83, 260442), (91, 237546), (106, 203931), (117, 184758), (126, 171561), (159, 135954), (166, 130221), (182, 118773), (189, 114374), (234, 92379), (249, 86814), (273, 79182), (318, 67977), (351, 61586), (371, 58266), (378, 57187), (477, 45318), (498, 43407), (546, 39591), (581, 37206), (689, 31374), (702, 30793), (742, 29133), (747, 28938), (819, 26394), (954, 22659), (1079, 20034), (1113, 19422), (1162, 18603), (1378, 15687), (1431, 15106), (1494, 14469), (1638, 13197), (1743, 12402), (2067, 10458), (2158, 10017), (2226, 9711), (2241, 9646), (2457, 8798), (2862, 7553), (3237, 6678), (3339, 6474), (3486, 6201), (4134, 5229), (4399, 4914), (4482, 4823)]