12973779

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:137

約数の個数: 72

約数和(自身を含む): 24565632

約数和(自身を除く): 11591853

約数列:

[1, 3, 7, 9, 13, 21, 31, 39, 49, 63, 73, 91, 93, 117, 147, 217, 219, 273, 279, 403, 441, 511, 637, 651, 657, 819, 949, 1209, 1519, 1533, 1911, 1953, 2263, 2821, 2847, 3577, 3627, 4557, 4599, 5733, 6643, 6789, 8463, 8541, 10731, 13671, 15841, 19747, 19929, 20367, 25389, 29419, 32193, 46501, 47523, 59241, 59787, 88257, 110887, 139503, 142569, 177723, 205933, 264771, 332661, 418509, 617799, 997983, 1441531, 1853397, 4324593, 12973779]

約数ペア:

[(1, 12973779), (3, 4324593), (7, 1853397), (9, 1441531), (13, 997983), (21, 617799), (31, 418509), (39, 332661), (49, 264771), (63, 205933), (73, 177723), (91, 142569), (93, 139503), (117, 110887), (147, 88257), (217, 59787), (219, 59241), (273, 47523), (279, 46501), (403, 32193), (441, 29419), (511, 25389), (637, 20367), (651, 19929), (657, 19747), (819, 15841), (949, 13671), (1209, 10731), (1519, 8541), (1533, 8463), (1911, 6789), (1953, 6643), (2263, 5733), (2821, 4599), (2847, 4557), (3577, 3627)]