19912132

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 35642880

約数和(自身を除く): 15730748

約数列:

[1, 2, 4, 67, 134, 191, 268, 382, 389, 764, 778, 1556, 12797, 25594, 26063, 51188, 52126, 74299, 104252, 148598, 297196, 4978033, 9956066, 19912132]

約数ペア:

[(1, 19912132), (2, 9956066), (4, 4978033), (67, 297196), (134, 148598), (191, 104252), (268, 74299), (382, 52126), (389, 51188), (764, 26063), (778, 25594), (1556, 12797)]