20716668

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:496

約数の個数: 96

約数和(自身を含む): 62451200

約数和(自身を除く): 41734532

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 67, 84, 108, 126, 134, 189, 201, 252, 268, 378, 402, 409, 469, 603, 756, 804, 818, 938, 1206, 1227, 1407, 1636, 1809, 1876, 2412, 2454, 2814, 2863, 3618, 3681, 4221, 4908, 5628, 5726, 7236, 7362, 8442, 8589, 11043, 11452, 12663, 14724, 16884, 17178, 22086, 25326, 25767, 27403, 34356, 44172, 50652, 51534, 54806, 77301, 82209, 103068, 109612, 154602, 164418, 191821, 246627, 309204, 328836, 383642, 493254, 575463, 739881, 767284, 986508, 1150926, 1479762, 1726389, 2301852, 2959524, 3452778, 5179167, 6905556, 10358334, 20716668]

約数ペア:

[(1, 20716668), (2, 10358334), (3, 6905556), (4, 5179167), (6, 3452778), (7, 2959524), (9, 2301852), (12, 1726389), (14, 1479762), (18, 1150926), (21, 986508), (27, 767284), (28, 739881), (36, 575463), (42, 493254), (54, 383642), (63, 328836), (67, 309204), (84, 246627), (108, 191821), (126, 164418), (134, 154602), (189, 109612), (201, 103068), (252, 82209), (268, 77301), (378, 54806), (402, 51534), (409, 50652), (469, 44172), (603, 34356), (756, 27403), (804, 25767), (818, 25326), (938, 22086), (1206, 17178), (1227, 16884), (1407, 14724), (1636, 12663), (1809, 11452), (1876, 11043), (2412, 8589), (2454, 8442), (2814, 7362), (2863, 7236), (3618, 5726), (3681, 5628), (4221, 4908)]