21489130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7187}}^1$

素因数の和:7230

約数の個数: 32

約数和(自身を含む): 43473024

約数和(自身を除く): 21983894

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 7187, 14374, 35935, 71870, 93431, 165301, 186862, 330602, 467155, 826505, 934310, 1653010, 2148913, 4297826, 10744565, 21489130]

約数ペア:

[(1, 21489130), (2, 10744565), (5, 4297826), (10, 2148913), (13, 1653010), (23, 934310), (26, 826505), (46, 467155), (65, 330602), (115, 186862), (130, 165301), (230, 93431), (299, 71870), (598, 35935), (1495, 14374), (2990, 7187)]