221418915

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{13757}}^1$

素因数の和:13831

約数の個数: 32

約数和(自身を含む): 376418880

約数和(自身を除く): 154999965

約数列:

[1, 3, 5, 15, 29, 37, 87, 111, 145, 185, 435, 555, 1073, 3219, 5365, 13757, 16095, 41271, 68785, 206355, 398953, 509009, 1196859, 1527027, 1994765, 2545045, 5984295, 7635135, 14761261, 44283783, 73806305, 221418915]

約数ペア:

[(1, 221418915), (3, 73806305), (5, 44283783), (15, 14761261), (29, 7635135), (37, 5984295), (87, 2545045), (111, 1994765), (145, 1527027), (185, 1196859), (435, 509009), (555, 398953), (1073, 206355), (3219, 68785), (5365, 41271), (13757, 16095)]