21694725

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7417}}^1$

素因数の和:7446

約数の個数: 36

約数和(自身を含む): 41852356

約数和(自身を除く): 20157631

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 7417, 22251, 37085, 66753, 96421, 111255, 185425, 289263, 333765, 482105, 556275, 867789, 1446315, 1668825, 2410525, 4338945, 7231575, 21694725]

約数ペア:

[(1, 21694725), (3, 7231575), (5, 4338945), (9, 2410525), (13, 1668825), (15, 1446315), (25, 867789), (39, 556275), (45, 482105), (65, 333765), (75, 289263), (117, 185425), (195, 111255), (225, 96421), (325, 66753), (585, 37085), (975, 22251), (2925, 7417)]