21410276

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{18521}}^1$

素因数の和:18559

約数の個数: 18

約数和(自身を含む): 39803778

約数和(自身を除く): 18393502

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 18521, 37042, 74084, 314857, 629714, 1259428, 5352569, 10705138, 21410276]

約数ペア:

[(1, 21410276), (2, 10705138), (4, 5352569), (17, 1259428), (34, 629714), (68, 314857), (289, 74084), (578, 37042), (1156, 18521)]