21744987

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 33792000

約数和(自身を除く): 12047013

約数列:

[1, 3, 11, 19, 33, 57, 79, 209, 237, 439, 627, 869, 1317, 1501, 2607, 4503, 4829, 8341, 14487, 16511, 25023, 34681, 49533, 91751, 104043, 275253, 381491, 658939, 1144473, 1976817, 7248329, 21744987]

約数ペア:

[(1, 21744987), (3, 7248329), (11, 1976817), (19, 1144473), (33, 658939), (57, 381491), (79, 275253), (209, 104043), (237, 91751), (439, 49533), (627, 34681), (869, 25023), (1317, 16511), (1501, 14487), (2607, 8341), (4503, 4829)]