21413920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^3$

素因数の和:95

約数の個数: 96

約数和(自身を含む): 57697920

約数和(自身を除く): 36284000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 32, 40, 44, 46, 55, 80, 88, 92, 110, 115, 160, 176, 184, 220, 230, 253, 352, 368, 440, 460, 506, 529, 736, 880, 920, 1012, 1058, 1265, 1760, 1840, 2024, 2116, 2530, 2645, 3680, 4048, 4232, 5060, 5290, 5819, 8096, 8464, 10120, 10580, 11638, 12167, 16928, 20240, 21160, 23276, 24334, 29095, 40480, 42320, 46552, 48668, 58190, 60835, 84640, 93104, 97336, 116380, 121670, 133837, 186208, 194672, 232760, 243340, 267674, 389344, 465520, 486680, 535348, 669185, 931040, 973360, 1070696, 1338370, 1946720, 2141392, 2676740, 4282784, 5353480, 10706960, 21413920]

約数ペア:

[(1, 21413920), (2, 10706960), (4, 5353480), (5, 4282784), (8, 2676740), (10, 2141392), (11, 1946720), (16, 1338370), (20, 1070696), (22, 973360), (23, 931040), (32, 669185), (40, 535348), (44, 486680), (46, 465520), (55, 389344), (80, 267674), (88, 243340), (92, 232760), (110, 194672), (115, 186208), (160, 133837), (176, 121670), (184, 116380), (220, 97336), (230, 93104), (253, 84640), (352, 60835), (368, 58190), (440, 48668), (460, 46552), (506, 42320), (529, 40480), (736, 29095), (880, 24334), (920, 23276), (1012, 21160), (1058, 20240), (1265, 16928), (1760, 12167), (1840, 11638), (2024, 10580), (2116, 10120), (2530, 8464), (2645, 8096), (3680, 5819), (4048, 5290), (4232, 5060)]