221740428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{809}}^1$

素因数の和:1087

約数の個数: 96

約数和(自身を含む): 640120320

約数和(自身を除く): 418379892

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 251, 273, 364, 502, 546, 753, 809, 1004, 1092, 1506, 1618, 1757, 2427, 3012, 3236, 3263, 3514, 4854, 5271, 5663, 6526, 7028, 9708, 9789, 10517, 10542, 11326, 13052, 16989, 19578, 21034, 21084, 22652, 22841, 31551, 33978, 39156, 42068, 45682, 63102, 67956, 68523, 73619, 91364, 126204, 137046, 147238, 203059, 220857, 274092, 294476, 406118, 441714, 609177, 812236, 883428, 1218354, 1421413, 2436708, 2639767, 2842826, 4264239, 5279534, 5685652, 7919301, 8528478, 10559068, 15838602, 17056956, 18478369, 31677204, 36956738, 55435107, 73913476, 110870214, 221740428]

約数ペア:

[(1, 221740428), (2, 110870214), (3, 73913476), (4, 55435107), (6, 36956738), (7, 31677204), (12, 18478369), (13, 17056956), (14, 15838602), (21, 10559068), (26, 8528478), (28, 7919301), (39, 5685652), (42, 5279534), (52, 4264239), (78, 2842826), (84, 2639767), (91, 2436708), (156, 1421413), (182, 1218354), (251, 883428), (273, 812236), (364, 609177), (502, 441714), (546, 406118), (753, 294476), (809, 274092), (1004, 220857), (1092, 203059), (1506, 147238), (1618, 137046), (1757, 126204), (2427, 91364), (3012, 73619), (3236, 68523), (3263, 67956), (3514, 63102), (4854, 45682), (5271, 42068), (5663, 39156), (6526, 33978), (7028, 31551), (9708, 22841), (9789, 22652), (10517, 21084), (10542, 21034), (11326, 19578), (13052, 16989)]