40389741

素因数分解:

$3^2\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1151}}^1$

素因数の和:1721

約数の個数: 24

約数和(自身を含む): 66852864

約数和(自身を除く): 26463123

約数列:

[1, 3, 7, 9, 21, 63, 557, 1151, 1671, 3453, 3899, 5013, 8057, 10359, 11697, 24171, 35091, 72513, 641107, 1923321, 4487749, 5769963, 13463247, 40389741]

約数ペア:

[(1, 40389741), (3, 13463247), (7, 5769963), (9, 4487749), (21, 1923321), (63, 641107), (557, 72513), (1151, 35091), (1671, 24171), (3453, 11697), (3899, 10359), (5013, 8057)]