21107384

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 40465440

約数和(自身を除く): 19358056

約数列:

[1, 2, 4, 8, 101, 151, 173, 202, 302, 346, 404, 604, 692, 808, 1208, 1384, 15251, 17473, 26123, 30502, 34946, 52246, 61004, 69892, 104492, 122008, 139784, 208984, 2638423, 5276846, 10553692, 21107384]

約数ペア:

[(1, 21107384), (2, 10553692), (4, 5276846), (8, 2638423), (101, 208984), (151, 139784), (173, 122008), (202, 104492), (302, 69892), (346, 61004), (404, 52246), (604, 34946), (692, 30502), (808, 26123), (1208, 17473), (1384, 15251)]