21931120

素因数分解:

$2^4\times 5^1\times {\mathrm{274139}}^1$

素因数の和:274152

約数の個数: 20

約数和(自身を含む): 50990040

約数和(自身を除く): 29058920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 274139, 548278, 1096556, 1370695, 2193112, 2741390, 4386224, 5482780, 10965560, 21931120]

約数ペア:

[(1, 21931120), (2, 10965560), (4, 5482780), (5, 4386224), (8, 2741390), (10, 2193112), (16, 1370695), (20, 1096556), (40, 548278), (80, 274139)]