21647120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1447}}^1$

素因数の和:1488

約数の個数: 80

約数和(自身を含む): 58174848

約数和(自身を除く): 36527728

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1447, 1496, 1870, 2894, 2992, 3740, 5788, 7235, 7480, 11576, 14470, 14960, 15917, 23152, 24599, 28940, 31834, 49198, 57880, 63668, 79585, 98396, 115760, 122995, 127336, 159170, 196792, 245990, 254672, 270589, 318340, 393584, 491980, 541178, 636680, 983960, 1082356, 1273360, 1352945, 1967920, 2164712, 2705890, 4329424, 5411780, 10823560, 21647120]

約数ペア:

[(1, 21647120), (2, 10823560), (4, 5411780), (5, 4329424), (8, 2705890), (10, 2164712), (11, 1967920), (16, 1352945), (17, 1273360), (20, 1082356), (22, 983960), (34, 636680), (40, 541178), (44, 491980), (55, 393584), (68, 318340), (80, 270589), (85, 254672), (88, 245990), (110, 196792), (136, 159170), (170, 127336), (176, 122995), (187, 115760), (220, 98396), (272, 79585), (340, 63668), (374, 57880), (440, 49198), (680, 31834), (748, 28940), (880, 24599), (935, 23152), (1360, 15917), (1447, 14960), (1496, 14470), (1870, 11576), (2894, 7480), (2992, 7235), (3740, 5788)]