18405946

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:143

約数の個数: 48

約数和(自身を含む): 32836104

約数和(自身を除く): 14430158

約数列:

[1, 2, 13, 19, 26, 37, 38, 53, 74, 106, 247, 361, 481, 494, 689, 703, 722, 962, 1007, 1378, 1406, 1961, 2014, 3922, 4693, 9139, 9386, 13091, 13357, 18278, 19133, 25493, 26182, 26714, 37259, 38266, 50986, 74518, 173641, 248729, 347282, 484367, 497458, 707921, 968734, 1415842, 9202973, 18405946]

約数ペア:

[(1, 18405946), (2, 9202973), (13, 1415842), (19, 968734), (26, 707921), (37, 497458), (38, 484367), (53, 347282), (74, 248729), (106, 173641), (247, 74518), (361, 50986), (481, 38266), (494, 37259), (689, 26714), (703, 26182), (722, 25493), (962, 19133), (1007, 18278), (1378, 13357), (1406, 13091), (1961, 9386), (2014, 9139), (3922, 4693)]