21148764

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 61641216

約数和(自身を除く): 40492452

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 107, 156, 181, 182, 214, 273, 321, 362, 364, 428, 543, 546, 642, 724, 749, 1086, 1092, 1267, 1284, 1391, 1498, 2172, 2247, 2353, 2534, 2782, 2996, 3801, 4173, 4494, 4706, 5068, 5564, 7059, 7602, 8346, 8988, 9412, 9737, 14118, 15204, 16471, 16692, 19367, 19474, 28236, 29211, 32942, 38734, 38948, 49413, 58101, 58422, 65884, 77468, 98826, 116202, 116844, 135569, 197652, 232404, 251771, 271138, 406707, 503542, 542276, 755313, 813414, 1007084, 1510626, 1626828, 1762397, 3021252, 3524794, 5287191, 7049588, 10574382, 21148764]

約数ペア:

[(1, 21148764), (2, 10574382), (3, 7049588), (4, 5287191), (6, 3524794), (7, 3021252), (12, 1762397), (13, 1626828), (14, 1510626), (21, 1007084), (26, 813414), (28, 755313), (39, 542276), (42, 503542), (52, 406707), (78, 271138), (84, 251771), (91, 232404), (107, 197652), (156, 135569), (181, 116844), (182, 116202), (214, 98826), (273, 77468), (321, 65884), (362, 58422), (364, 58101), (428, 49413), (543, 38948), (546, 38734), (642, 32942), (724, 29211), (749, 28236), (1086, 19474), (1092, 19367), (1267, 16692), (1284, 16471), (1391, 15204), (1498, 14118), (2172, 9737), (2247, 9412), (2353, 8988), (2534, 8346), (2782, 7602), (2996, 7059), (3801, 5564), (4173, 5068), (4494, 4706)]