21005530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{563}}^1$

素因数の和:631

約数の個数: 64

約数和(自身を含む): 47755008

約数和(自身を除く): 26749478

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 41, 65, 70, 82, 91, 130, 182, 205, 287, 410, 455, 533, 563, 574, 910, 1066, 1126, 1435, 2665, 2815, 2870, 3731, 3941, 5330, 5630, 7319, 7462, 7882, 14638, 18655, 19705, 23083, 36595, 37310, 39410, 46166, 51233, 73190, 102466, 115415, 161581, 230830, 256165, 300079, 323162, 512330, 600158, 807905, 1500395, 1615810, 2100553, 3000790, 4201106, 10502765, 21005530]

約数ペア:

[(1, 21005530), (2, 10502765), (5, 4201106), (7, 3000790), (10, 2100553), (13, 1615810), (14, 1500395), (26, 807905), (35, 600158), (41, 512330), (65, 323162), (70, 300079), (82, 256165), (91, 230830), (130, 161581), (182, 115415), (205, 102466), (287, 73190), (410, 51233), (455, 46166), (533, 39410), (563, 37310), (574, 36595), (910, 23083), (1066, 19705), (1126, 18655), (1435, 14638), (2665, 7882), (2815, 7462), (2870, 7319), (3731, 5630), (3941, 5330)]