21761612

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6659}}^1$

素因数の和:6725

約数の個数: 24

約数和(自身を含む): 41025600

約数和(自身を除く): 19263988

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 6659, 13318, 26636, 126521, 253042, 286337, 506084, 572674, 1145348, 5440403, 10880806, 21761612]

約数ペア:

[(1, 21761612), (2, 10880806), (4, 5440403), (19, 1145348), (38, 572674), (43, 506084), (76, 286337), (86, 253042), (172, 126521), (817, 26636), (1634, 13318), (3268, 6659)]