21202428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{135913}}^1$

素因数の和:135933

約数の個数: 24

約数和(自身を含む): 53278288

約数和(自身を除く): 32075860

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 135913, 271826, 407739, 543652, 815478, 1630956, 1766869, 3533738, 5300607, 7067476, 10601214, 21202428]

約数ペア:

[(1, 21202428), (2, 10601214), (3, 7067476), (4, 5300607), (6, 3533738), (12, 1766869), (13, 1630956), (26, 815478), (39, 543652), (52, 407739), (78, 271826), (156, 135913)]