211551408

素因数分解:

$2^4\times 3^2\times {\mathrm{53}}^2\times {\mathrm{523}}^1$

素因数の和:643

約数の個数: 90

約数和(自身を含む): 604585436

約数和(自身を除く): 393034028

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 53, 72, 106, 144, 159, 212, 318, 424, 477, 523, 636, 848, 954, 1046, 1272, 1569, 1908, 2092, 2544, 2809, 3138, 3816, 4184, 4707, 5618, 6276, 7632, 8368, 8427, 9414, 11236, 12552, 16854, 18828, 22472, 25104, 25281, 27719, 33708, 37656, 44944, 50562, 55438, 67416, 75312, 83157, 101124, 110876, 134832, 166314, 202248, 221752, 249471, 332628, 404496, 443504, 498942, 665256, 997884, 1330512, 1469107, 1995768, 2938214, 3991536, 4407321, 5876428, 8814642, 11752856, 13221963, 17629284, 23505712, 26443926, 35258568, 52887852, 70517136, 105775704, 211551408]

約数ペア:

[(1, 211551408), (2, 105775704), (3, 70517136), (4, 52887852), (6, 35258568), (8, 26443926), (9, 23505712), (12, 17629284), (16, 13221963), (18, 11752856), (24, 8814642), (36, 5876428), (48, 4407321), (53, 3991536), (72, 2938214), (106, 1995768), (144, 1469107), (159, 1330512), (212, 997884), (318, 665256), (424, 498942), (477, 443504), (523, 404496), (636, 332628), (848, 249471), (954, 221752), (1046, 202248), (1272, 166314), (1569, 134832), (1908, 110876), (2092, 101124), (2544, 83157), (2809, 75312), (3138, 67416), (3816, 55438), (4184, 50562), (4707, 44944), (5618, 37656), (6276, 33708), (7632, 27719), (8368, 25281), (8427, 25104), (9414, 22472), (11236, 18828), (12552, 16854)]