20810895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4217}}^1$

素因数の和:4279

約数の個数: 32

約数和(自身を含む): 38873088

約数和(自身を除く): 18062193

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4217, 4935, 12651, 21085, 29519, 63255, 88557, 147595, 198199, 442785, 594597, 990995, 1387393, 2972985, 4162179, 6936965, 20810895]

約数ペア:

[(1, 20810895), (3, 6936965), (5, 4162179), (7, 2972985), (15, 1387393), (21, 990995), (35, 594597), (47, 442785), (105, 198199), (141, 147595), (235, 88557), (329, 63255), (705, 29519), (987, 21085), (1645, 12651), (4217, 4935)]