21988176

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2111}}^1$

素因数の和:2160

約数の個数: 80

約数和(自身を含む): 67043328

約数和(自身を除く): 45055152

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 42, 48, 56, 62, 84, 93, 112, 124, 168, 186, 217, 248, 336, 372, 434, 496, 651, 744, 868, 1302, 1488, 1736, 2111, 2604, 3472, 4222, 5208, 6333, 8444, 10416, 12666, 14777, 16888, 25332, 29554, 33776, 44331, 50664, 59108, 65441, 88662, 101328, 118216, 130882, 177324, 196323, 236432, 261764, 354648, 392646, 458087, 523528, 709296, 785292, 916174, 1047056, 1374261, 1570584, 1832348, 2748522, 3141168, 3664696, 5497044, 7329392, 10994088, 21988176]

約数ペア:

[(1, 21988176), (2, 10994088), (3, 7329392), (4, 5497044), (6, 3664696), (7, 3141168), (8, 2748522), (12, 1832348), (14, 1570584), (16, 1374261), (21, 1047056), (24, 916174), (28, 785292), (31, 709296), (42, 523528), (48, 458087), (56, 392646), (62, 354648), (84, 261764), (93, 236432), (112, 196323), (124, 177324), (168, 130882), (186, 118216), (217, 101328), (248, 88662), (336, 65441), (372, 59108), (434, 50664), (496, 44331), (651, 33776), (744, 29554), (868, 25332), (1302, 16888), (1488, 14777), (1736, 12666), (2111, 10416), (2604, 8444), (3472, 6333), (4222, 5208)]