221011305

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^3\times {\mathrm{2999}}^1$

素因数の和:3058

約数の個数: 32

約数和(自身を含む): 375840000

約数和(自身を除く): 154828695

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 2999, 4335, 4913, 8997, 14739, 14995, 24565, 44985, 50983, 73695, 152949, 254915, 764745, 866711, 2600133, 4333555, 13000665, 14734087, 44202261, 73670435, 221011305]

約数ペア:

[(1, 221011305), (3, 73670435), (5, 44202261), (15, 14734087), (17, 13000665), (51, 4333555), (85, 2600133), (255, 866711), (289, 764745), (867, 254915), (1445, 152949), (2999, 73695), (4335, 50983), (4913, 44985), (8997, 24565), (14739, 14995)]