21636678

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{6521}}^1$

素因数の和:6612

約数の個数: 32

約数和(自身を含む): 50088960

約数和(自身を除く): 28452282

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 79, 158, 237, 474, 553, 1106, 1659, 3318, 6521, 13042, 19563, 39126, 45647, 91294, 136941, 273882, 515159, 1030318, 1545477, 3090954, 3606113, 7212226, 10818339, 21636678]

約数ペア:

[(1, 21636678), (2, 10818339), (3, 7212226), (6, 3606113), (7, 3090954), (14, 1545477), (21, 1030318), (42, 515159), (79, 273882), (158, 136941), (237, 91294), (474, 45647), (553, 39126), (1106, 19563), (1659, 13042), (3318, 6521)]