21128182

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{5437}}^1$

素因数の和:5535

約数の個数: 16

約数和(自身を含む): 33280560

約数和(自身を除く): 12152378

約数列:

[1, 2, 29, 58, 67, 134, 1943, 3886, 5437, 10874, 157673, 315346, 364279, 728558, 10564091, 21128182]

約数ペア:

[(1, 21128182), (2, 10564091), (29, 728558), (58, 364279), (67, 315346), (134, 157673), (1943, 10874), (3886, 5437)]