18521384

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 23503576

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 47, 56, 62, 94, 124, 188, 217, 227, 248, 329, 376, 434, 454, 658, 868, 908, 1316, 1457, 1589, 1736, 1816, 2632, 2914, 3178, 5828, 6356, 7037, 10199, 10669, 11656, 12712, 14074, 20398, 21338, 28148, 40796, 42676, 49259, 56296, 74683, 81592, 85352, 98518, 149366, 197036, 298732, 330739, 394072, 597464, 661478, 1322956, 2315173, 2645912, 4630346, 9260692, 18521384]

約数ペア:

[(1, 18521384), (2, 9260692), (4, 4630346), (7, 2645912), (8, 2315173), (14, 1322956), (28, 661478), (31, 597464), (47, 394072), (56, 330739), (62, 298732), (94, 197036), (124, 149366), (188, 98518), (217, 85352), (227, 81592), (248, 74683), (329, 56296), (376, 49259), (434, 42676), (454, 40796), (658, 28148), (868, 21338), (908, 20398), (1316, 14074), (1457, 12712), (1589, 11656), (1736, 10669), (1816, 10199), (2632, 7037), (2914, 6356), (3178, 5828)]