19047525

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 37658304

約数和(自身を除く): 18610779

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 71, 73, 75, 105, 147, 175, 213, 219, 245, 355, 365, 497, 511, 525, 735, 1065, 1095, 1225, 1491, 1533, 1775, 1825, 2485, 2555, 3479, 3577, 3675, 5183, 5325, 5475, 7455, 7665, 10437, 10731, 12425, 12775, 15549, 17395, 17885, 25915, 36281, 37275, 38325, 52185, 53655, 77745, 86975, 89425, 108843, 129575, 181405, 253967, 260925, 268275, 388725, 544215, 761901, 907025, 1269835, 2721075, 3809505, 6349175, 19047525]

約数ペア:

[(1, 19047525), (3, 6349175), (5, 3809505), (7, 2721075), (15, 1269835), (21, 907025), (25, 761901), (35, 544215), (49, 388725), (71, 268275), (73, 260925), (75, 253967), (105, 181405), (147, 129575), (175, 108843), (213, 89425), (219, 86975), (245, 77745), (355, 53655), (365, 52185), (497, 38325), (511, 37275), (525, 36281), (735, 25915), (1065, 17885), (1095, 17395), (1225, 15549), (1491, 12775), (1533, 12425), (1775, 10731), (1825, 10437), (2485, 7665), (2555, 7455), (3479, 5475), (3577, 5325), (3675, 5183)]