21983650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1091}}^1$

素因数の和:1147

約数の個数: 48

約数和(自身を含む): 45497088

約数和(自身を除く): 23513438

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1091, 1550, 2015, 2182, 4030, 5455, 10075, 10910, 14183, 20150, 27275, 28366, 33821, 54550, 67642, 70915, 141830, 169105, 338210, 354575, 439673, 709150, 845525, 879346, 1691050, 2198365, 4396730, 10991825, 21983650]

約数ペア:

[(1, 21983650), (2, 10991825), (5, 4396730), (10, 2198365), (13, 1691050), (25, 879346), (26, 845525), (31, 709150), (50, 439673), (62, 354575), (65, 338210), (130, 169105), (155, 141830), (310, 70915), (325, 67642), (403, 54550), (650, 33821), (775, 28366), (806, 27275), (1091, 20150), (1550, 14183), (2015, 10910), (2182, 10075), (4030, 5455)]