21751840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{727}}^1$

素因数の和:770

約数の個数: 96

約数和(自身を含む): 59439744

約数和(自身を除く): 37687904

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 160, 170, 176, 187, 220, 272, 340, 352, 374, 440, 544, 680, 727, 748, 880, 935, 1360, 1454, 1496, 1760, 1870, 2720, 2908, 2992, 3635, 3740, 5816, 5984, 7270, 7480, 7997, 11632, 12359, 14540, 14960, 15994, 23264, 24718, 29080, 29920, 31988, 39985, 49436, 58160, 61795, 63976, 79970, 98872, 116320, 123590, 127952, 135949, 159940, 197744, 247180, 255904, 271898, 319880, 395488, 494360, 543796, 639760, 679745, 988720, 1087592, 1279520, 1359490, 1977440, 2175184, 2718980, 4350368, 5437960, 10875920, 21751840]

約数ペア:

[(1, 21751840), (2, 10875920), (4, 5437960), (5, 4350368), (8, 2718980), (10, 2175184), (11, 1977440), (16, 1359490), (17, 1279520), (20, 1087592), (22, 988720), (32, 679745), (34, 639760), (40, 543796), (44, 494360), (55, 395488), (68, 319880), (80, 271898), (85, 255904), (88, 247180), (110, 197744), (136, 159940), (160, 135949), (170, 127952), (176, 123590), (187, 116320), (220, 98872), (272, 79970), (340, 63976), (352, 61795), (374, 58160), (440, 49436), (544, 39985), (680, 31988), (727, 29920), (748, 29080), (880, 24718), (935, 23264), (1360, 15994), (1454, 14960), (1496, 14540), (1760, 12359), (1870, 11632), (2720, 7997), (2908, 7480), (2992, 7270), (3635, 5984), (3740, 5816)]