21833175

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{457}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 45320016

約数和(自身を除く): 23486841

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 49, 65, 75, 91, 105, 147, 175, 195, 245, 273, 325, 455, 457, 525, 637, 735, 975, 1225, 1365, 1371, 1911, 2275, 2285, 3185, 3199, 3675, 5941, 6825, 6855, 9555, 9597, 11425, 15925, 15995, 17823, 22393, 29705, 34275, 41587, 47775, 47985, 67179, 79975, 89115, 111965, 124761, 148525, 207935, 239925, 291109, 335895, 445575, 559825, 623805, 873327, 1039675, 1455545, 1679475, 3119025, 4366635, 7277725, 21833175]

約数ペア:

[(1, 21833175), (3, 7277725), (5, 4366635), (7, 3119025), (13, 1679475), (15, 1455545), (21, 1039675), (25, 873327), (35, 623805), (39, 559825), (49, 445575), (65, 335895), (75, 291109), (91, 239925), (105, 207935), (147, 148525), (175, 124761), (195, 111965), (245, 89115), (273, 79975), (325, 67179), (455, 47985), (457, 47775), (525, 41587), (637, 34275), (735, 29705), (975, 22393), (1225, 17823), (1365, 15995), (1371, 15925), (1911, 11425), (2275, 9597), (2285, 9555), (3185, 6855), (3199, 6825), (3675, 5941)]