21227505

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4733}}^1$

素因数の和:4777

約数の個数: 32

約数和(自身を含む): 38174976

約数和(自身を除く): 16947471

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 4733, 14199, 23665, 61529, 70995, 108859, 184587, 307645, 326577, 544295, 922935, 1415167, 1632885, 4245501, 7075835, 21227505]

約数ペア:

[(1, 21227505), (3, 7075835), (5, 4245501), (13, 1632885), (15, 1415167), (23, 922935), (39, 544295), (65, 326577), (69, 307645), (115, 184587), (195, 108859), (299, 70995), (345, 61529), (897, 23665), (1495, 14199), (4485, 4733)]