21979950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{23}}^2\times {\mathrm{277}}^1$

素因数の和:338

約数の個数: 72

約数和(自身を含む): 57189048

約数和(自身を除く): 35209098

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 46, 50, 69, 75, 115, 138, 150, 230, 277, 345, 529, 554, 575, 690, 831, 1058, 1150, 1385, 1587, 1662, 1725, 2645, 2770, 3174, 3450, 4155, 5290, 6371, 6925, 7935, 8310, 12742, 13225, 13850, 15870, 19113, 20775, 26450, 31855, 38226, 39675, 41550, 63710, 79350, 95565, 146533, 159275, 191130, 293066, 318550, 439599, 477825, 732665, 879198, 955650, 1465330, 2197995, 3663325, 4395990, 7326650, 10989975, 21979950]

約数ペア:

[(1, 21979950), (2, 10989975), (3, 7326650), (5, 4395990), (6, 3663325), (10, 2197995), (15, 1465330), (23, 955650), (25, 879198), (30, 732665), (46, 477825), (50, 439599), (69, 318550), (75, 293066), (115, 191130), (138, 159275), (150, 146533), (230, 95565), (277, 79350), (345, 63710), (529, 41550), (554, 39675), (575, 38226), (690, 31855), (831, 26450), (1058, 20775), (1150, 19113), (1385, 15870), (1587, 13850), (1662, 13225), (1725, 12742), (2645, 8310), (2770, 7935), (3174, 6925), (3450, 6371), (4155, 5290)]