21249522

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1231}}^1$

素因数の和:1383

約数の個数: 48

約数和(自身を含む): 53044992

約数和(自身を除く): 31795470

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 137, 274, 411, 822, 959, 1231, 1233, 1918, 2462, 2466, 2877, 3693, 5754, 7386, 8617, 8631, 11079, 17234, 17262, 22158, 25851, 51702, 77553, 155106, 168647, 337294, 505941, 1011882, 1180529, 1517823, 2361058, 3035646, 3541587, 7083174, 10624761, 21249522]

約数ペア:

[(1, 21249522), (2, 10624761), (3, 7083174), (6, 3541587), (7, 3035646), (9, 2361058), (14, 1517823), (18, 1180529), (21, 1011882), (42, 505941), (63, 337294), (126, 168647), (137, 155106), (274, 77553), (411, 51702), (822, 25851), (959, 22158), (1231, 17262), (1233, 17234), (1918, 11079), (2462, 8631), (2466, 8617), (2877, 7386), (3693, 5754)]