21328311

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{3659}}^1$

素因数の和:3758

約数の個数: 16

約数和(自身を含む): 29865600

約数和(自身を除く): 8537289

約数列:

[1, 3, 29, 67, 87, 201, 1943, 3659, 5829, 10977, 106111, 245153, 318333, 735459, 7109437, 21328311]

約数ペア:

[(1, 21328311), (3, 7109437), (29, 735459), (67, 318333), (87, 245153), (201, 106111), (1943, 10977), (3659, 5829)]