21581898

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{1021}}^1$

素因数の和:1310

約数の個数: 32

約数和(自身を含む): 46701312

約数和(自身を除く): 25119414

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 271, 542, 813, 1021, 1626, 2042, 3063, 3523, 6126, 7046, 10569, 13273, 21138, 26546, 39819, 79638, 276691, 553382, 830073, 1660146, 3596983, 7193966, 10790949, 21581898]

約数ペア:

[(1, 21581898), (2, 10790949), (3, 7193966), (6, 3596983), (13, 1660146), (26, 830073), (39, 553382), (78, 276691), (271, 79638), (542, 39819), (813, 26546), (1021, 21138), (1626, 13273), (2042, 10569), (3063, 7046), (3523, 6126)]