21488408

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{158003}}^1$

素因数の和:158026

約数の個数: 16

約数和(自身を含む): 42661080

約数和(自身を除く): 21172672

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 158003, 316006, 632012, 1264024, 2686051, 5372102, 10744204, 21488408]

約数ペア:

[(1, 21488408), (2, 10744204), (4, 5372102), (8, 2686051), (17, 1264024), (34, 632012), (68, 316006), (136, 158003)]