20909252

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 49674240

約数和(自身を除く): 28764988

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 31, 34, 52, 62, 68, 91, 109, 119, 124, 182, 217, 218, 221, 238, 364, 403, 434, 436, 442, 476, 527, 763, 806, 868, 884, 1054, 1417, 1526, 1547, 1612, 1853, 2108, 2821, 2834, 3052, 3094, 3379, 3689, 3706, 5642, 5668, 6188, 6758, 6851, 7378, 7412, 9919, 11284, 12971, 13516, 13702, 14756, 19838, 23653, 24089, 25942, 27404, 39676, 43927, 47306, 47957, 48178, 51884, 57443, 87854, 94612, 95914, 96356, 114886, 168623, 175708, 191828, 229772, 307489, 337246, 402101, 614978, 674492, 746759, 804202, 1229956, 1493518, 1608404, 2987036, 5227313, 10454626, 20909252]

約数ペア:

[(1, 20909252), (2, 10454626), (4, 5227313), (7, 2987036), (13, 1608404), (14, 1493518), (17, 1229956), (26, 804202), (28, 746759), (31, 674492), (34, 614978), (52, 402101), (62, 337246), (68, 307489), (91, 229772), (109, 191828), (119, 175708), (124, 168623), (182, 114886), (217, 96356), (218, 95914), (221, 94612), (238, 87854), (364, 57443), (403, 51884), (434, 48178), (436, 47957), (442, 47306), (476, 43927), (527, 39676), (763, 27404), (806, 25942), (868, 24089), (884, 23653), (1054, 19838), (1417, 14756), (1526, 13702), (1547, 13516), (1612, 12971), (1853, 11284), (2108, 9919), (2821, 7412), (2834, 7378), (3052, 6851), (3094, 6758), (3379, 6188), (3689, 5668), (3706, 5642)]