18673564

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 42337568

約数和(自身を除く): 23664004

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 61, 91, 116, 122, 182, 203, 244, 364, 377, 406, 427, 754, 793, 812, 841, 854, 1508, 1586, 1682, 1708, 1769, 2639, 3172, 3364, 3538, 5278, 5551, 5887, 7076, 10556, 10933, 11102, 11774, 12383, 21866, 22204, 22997, 23548, 24766, 43732, 45994, 49532, 51301, 76531, 91988, 102602, 153062, 160979, 205204, 306124, 321958, 359107, 643916, 666913, 718214, 1333826, 1436428, 2667652, 4668391, 9336782, 18673564]

約数ペア:

[(1, 18673564), (2, 9336782), (4, 4668391), (7, 2667652), (13, 1436428), (14, 1333826), (26, 718214), (28, 666913), (29, 643916), (52, 359107), (58, 321958), (61, 306124), (91, 205204), (116, 160979), (122, 153062), (182, 102602), (203, 91988), (244, 76531), (364, 51301), (377, 49532), (406, 45994), (427, 43732), (754, 24766), (793, 23548), (812, 22997), (841, 22204), (854, 21866), (1508, 12383), (1586, 11774), (1682, 11102), (1708, 10933), (1769, 10556), (2639, 7076), (3172, 5887), (3364, 5551), (3538, 5278)]