30787209

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{8087}}^1$

素因数の和:8146

約数の個数: 20

約数和(自身を含む): 46975104

約数和(自身を除く): 16187895

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 8087, 24261, 72783, 218349, 380089, 655047, 1140267, 3420801, 10262403, 30787209]

約数ペア:

[(1, 30787209), (3, 10262403), (9, 3420801), (27, 1140267), (47, 655047), (81, 380089), (141, 218349), (423, 72783), (1269, 24261), (3807, 8087)]