20359605

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2731}}^1$

素因数の和:2817

約数の個数: 32

約数和(自身を含む): 37767168

約数和(自身を除く): 17407563

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 2731, 7455, 8193, 13655, 19117, 40965, 57351, 95585, 193901, 286755, 581703, 969505, 1357307, 2908515, 4071921, 6786535, 20359605]

約数ペア:

[(1, 20359605), (3, 6786535), (5, 4071921), (7, 2908515), (15, 1357307), (21, 969505), (35, 581703), (71, 286755), (105, 193901), (213, 95585), (355, 57351), (497, 40965), (1065, 19117), (1491, 13655), (2485, 8193), (2731, 7455)]