19018628

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{167}}^1\times {\mathrm{401}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 34038144

約数和(自身を除く): 15019516

約数列:

[1, 2, 4, 71, 142, 167, 284, 334, 401, 668, 802, 1604, 11857, 23714, 28471, 47428, 56942, 66967, 113884, 133934, 267868, 4754657, 9509314, 19018628]

約数ペア:

[(1, 19018628), (2, 9509314), (4, 4754657), (71, 267868), (142, 133934), (167, 113884), (284, 66967), (334, 56942), (401, 47428), (668, 28471), (802, 23714), (1604, 11857)]