21281670

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{149}}^1$

素因数の和:211

約数の個数: 96

約数和(自身を含む): 59724000

約数和(自身を除く): 38442330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 90, 115, 135, 138, 149, 207, 230, 270, 298, 345, 414, 447, 529, 621, 690, 745, 894, 1035, 1058, 1242, 1341, 1490, 1587, 2070, 2235, 2645, 2682, 3105, 3174, 3427, 4023, 4470, 4761, 5290, 6210, 6705, 6854, 7935, 8046, 9522, 10281, 13410, 14283, 15870, 17135, 20115, 20562, 23805, 28566, 30843, 34270, 40230, 47610, 51405, 61686, 71415, 78821, 92529, 102810, 142830, 154215, 157642, 185058, 236463, 308430, 394105, 462645, 472926, 709389, 788210, 925290, 1182315, 1418778, 2128167, 2364630, 3546945, 4256334, 7093890, 10640835, 21281670]

約数ペア:

[(1, 21281670), (2, 10640835), (3, 7093890), (5, 4256334), (6, 3546945), (9, 2364630), (10, 2128167), (15, 1418778), (18, 1182315), (23, 925290), (27, 788210), (30, 709389), (45, 472926), (46, 462645), (54, 394105), (69, 308430), (90, 236463), (115, 185058), (135, 157642), (138, 154215), (149, 142830), (207, 102810), (230, 92529), (270, 78821), (298, 71415), (345, 61686), (414, 51405), (447, 47610), (529, 40230), (621, 34270), (690, 30843), (745, 28566), (894, 23805), (1035, 20562), (1058, 20115), (1242, 17135), (1341, 15870), (1490, 14283), (1587, 13410), (2070, 10281), (2235, 9522), (2645, 8046), (2682, 7935), (3105, 6854), (3174, 6705), (3427, 6210), (4023, 5290), (4470, 4761)]