21423792

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:195

約数の個数: 120

約数和(自身を含む): 63537600

約数和(自身を除く): 42113808

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 38, 39, 48, 52, 57, 76, 78, 104, 114, 139, 152, 156, 169, 208, 228, 247, 278, 304, 312, 338, 417, 456, 494, 507, 556, 624, 676, 741, 834, 912, 988, 1014, 1112, 1352, 1482, 1668, 1807, 1976, 2028, 2224, 2641, 2704, 2964, 3211, 3336, 3614, 3952, 4056, 5282, 5421, 5928, 6422, 6672, 7228, 7923, 8112, 9633, 10564, 10842, 11856, 12844, 14456, 15846, 19266, 21128, 21684, 23491, 25688, 28912, 31692, 34333, 38532, 42256, 43368, 46982, 51376, 63384, 68666, 70473, 77064, 86736, 93964, 102999, 126768, 137332, 140946, 154128, 187928, 205998, 274664, 281892, 375856, 411996, 446329, 549328, 563784, 823992, 892658, 1127568, 1338987, 1647984, 1785316, 2677974, 3570632, 5355948, 7141264, 10711896, 21423792]

約数ペア:

[(1, 21423792), (2, 10711896), (3, 7141264), (4, 5355948), (6, 3570632), (8, 2677974), (12, 1785316), (13, 1647984), (16, 1338987), (19, 1127568), (24, 892658), (26, 823992), (38, 563784), (39, 549328), (48, 446329), (52, 411996), (57, 375856), (76, 281892), (78, 274664), (104, 205998), (114, 187928), (139, 154128), (152, 140946), (156, 137332), (169, 126768), (208, 102999), (228, 93964), (247, 86736), (278, 77064), (304, 70473), (312, 68666), (338, 63384), (417, 51376), (456, 46982), (494, 43368), (507, 42256), (556, 38532), (624, 34333), (676, 31692), (741, 28912), (834, 25688), (912, 23491), (988, 21684), (1014, 21128), (1112, 19266), (1352, 15846), (1482, 14456), (1668, 12844), (1807, 11856), (1976, 10842), (2028, 10564), (2224, 9633), (2641, 8112), (2704, 7923), (2964, 7228), (3211, 6672), (3336, 6422), (3614, 5928), (3952, 5421), (4056, 5282)]