428421

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{887}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 681984

約数和(自身を除く): 253563

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 887, 2661, 6209, 18627, 20401, 61203, 142807, 428421]

約数ペア:

[(1, 428421), (3, 142807), (7, 61203), (21, 20401), (23, 18627), (69, 6209), (161, 2661), (483, 887)]