18403588

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^2$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 41682816

約数和(自身を除く): 23279228

約数列:

[1, 2, 4, 7, 14, 17, 23, 28, 34, 41, 46, 68, 82, 92, 119, 161, 164, 238, 287, 322, 391, 476, 574, 644, 697, 782, 943, 1148, 1394, 1564, 1681, 1886, 2737, 2788, 3362, 3772, 4879, 5474, 6601, 6724, 9758, 10948, 11767, 13202, 16031, 19516, 23534, 26404, 28577, 32062, 38663, 47068, 57154, 64124, 77326, 112217, 114308, 154652, 200039, 224434, 270641, 400078, 448868, 541282, 657271, 800156, 1082564, 1314542, 2629084, 4600897, 9201794, 18403588]

約数ペア:

[(1, 18403588), (2, 9201794), (4, 4600897), (7, 2629084), (14, 1314542), (17, 1082564), (23, 800156), (28, 657271), (34, 541282), (41, 448868), (46, 400078), (68, 270641), (82, 224434), (92, 200039), (119, 154652), (161, 114308), (164, 112217), (238, 77326), (287, 64124), (322, 57154), (391, 47068), (476, 38663), (574, 32062), (644, 28577), (697, 26404), (782, 23534), (943, 19516), (1148, 16031), (1394, 13202), (1564, 11767), (1681, 10948), (1886, 9758), (2737, 6724), (2788, 6601), (3362, 5474), (3772, 4879)]