21603550

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 42586560

約数和(自身を除く): 20983010

約数列:

[1, 2, 5, 10, 25, 29, 47, 50, 58, 94, 145, 235, 290, 317, 470, 634, 725, 1175, 1363, 1450, 1585, 2350, 2726, 3170, 6815, 7925, 9193, 13630, 14899, 15850, 18386, 29798, 34075, 45965, 68150, 74495, 91930, 148990, 229825, 372475, 432071, 459650, 744950, 864142, 2160355, 4320710, 10801775, 21603550]

約数ペア:

[(1, 21603550), (2, 10801775), (5, 4320710), (10, 2160355), (25, 864142), (29, 744950), (47, 459650), (50, 432071), (58, 372475), (94, 229825), (145, 148990), (235, 91930), (290, 74495), (317, 68150), (470, 45965), (634, 34075), (725, 29798), (1175, 18386), (1363, 15850), (1450, 14899), (1585, 13630), (2350, 9193), (2726, 7925), (3170, 6815)]