18455913

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 32587776

約数和(自身を除く): 14131863

約数列:

[1, 3, 7, 9, 21, 23, 47, 63, 69, 141, 161, 207, 271, 329, 423, 483, 813, 987, 1081, 1449, 1897, 2439, 2961, 3243, 5691, 6233, 7567, 9729, 12737, 17073, 18699, 22701, 38211, 43631, 56097, 68103, 89159, 114633, 130893, 267477, 292951, 392679, 802431, 878853, 2050657, 2636559, 6151971, 18455913]

約数ペア:

[(1, 18455913), (3, 6151971), (7, 2636559), (9, 2050657), (21, 878853), (23, 802431), (47, 392679), (63, 292951), (69, 267477), (141, 130893), (161, 114633), (207, 89159), (271, 68103), (329, 56097), (423, 43631), (483, 38211), (813, 22701), (987, 18699), (1081, 17073), (1449, 12737), (1897, 9729), (2439, 7567), (2961, 6233), (3243, 5691)]