21221447735

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{337}}^1\times {\mathrm{43579}}^1$

素因数の和:43955

約数の個数: 24

約数和(自身を含む): 27132733680

約数和(自身を除く): 5911285945

約数列:

[1, 5, 17, 85, 289, 337, 1445, 1685, 5729, 28645, 43579, 97393, 217895, 486965, 740843, 3704215, 12594331, 14686123, 62971655, 73430615, 249664091, 1248320455, 4244289547, 21221447735]

約数ペア:

[(1, 21221447735), (5, 4244289547), (17, 1248320455), (85, 249664091), (289, 73430615), (337, 62971655), (1445, 14686123), (1685, 12594331), (5729, 3704215), (28645, 740843), (43579, 486965), (97393, 217895)]