21319430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193813}}^1$

素因数の和:193831

約数の個数: 16

約数和(自身を含む): 41863824

約数和(自身を除く): 20544394

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 193813, 387626, 969065, 1938130, 2131943, 4263886, 10659715, 21319430]

約数ペア:

[(1, 21319430), (2, 10659715), (5, 4263886), (10, 2131943), (11, 1938130), (22, 969065), (55, 387626), (110, 193813)]