21840804

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{863}}^1$

素因数の和:929

約数の個数: 72

約数和(自身を含む): 59754240

約数和(自身を除く): 37913436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 37, 38, 57, 74, 76, 111, 114, 148, 171, 222, 228, 333, 342, 444, 666, 684, 703, 863, 1332, 1406, 1726, 2109, 2589, 2812, 3452, 4218, 5178, 6327, 7767, 8436, 10356, 12654, 15534, 16397, 25308, 31068, 31931, 32794, 49191, 63862, 65588, 95793, 98382, 127724, 147573, 191586, 196764, 287379, 295146, 383172, 574758, 590292, 606689, 1149516, 1213378, 1820067, 2426756, 3640134, 5460201, 7280268, 10920402, 21840804]

約数ペア:

[(1, 21840804), (2, 10920402), (3, 7280268), (4, 5460201), (6, 3640134), (9, 2426756), (12, 1820067), (18, 1213378), (19, 1149516), (36, 606689), (37, 590292), (38, 574758), (57, 383172), (74, 295146), (76, 287379), (111, 196764), (114, 191586), (148, 147573), (171, 127724), (222, 98382), (228, 95793), (333, 65588), (342, 63862), (444, 49191), (666, 32794), (684, 31931), (703, 31068), (863, 25308), (1332, 16397), (1406, 15534), (1726, 12654), (2109, 10356), (2589, 8436), (2812, 7767), (3452, 6327), (4218, 5178)]