21491386

素因数分解:

$2^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{15199}}^1$

素因数の和:15309

約数の個数: 16

約数和(自身を含む): 37209600

約数和(自身を除く): 15718214

約数列:

[1, 2, 7, 14, 101, 202, 707, 1414, 15199, 30398, 106393, 212786, 1535099, 3070198, 10745693, 21491386]

約数ペア:

[(1, 21491386), (2, 10745693), (7, 3070198), (14, 1535099), (101, 212786), (202, 106393), (707, 30398), (1414, 15199)]