18161968

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2789}}^1$

素因数の和:2845

約数の個数: 40

約数和(自身を含む): 39439440

約数和(自身を除く): 21277472

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 296, 407, 592, 814, 1628, 2789, 3256, 5578, 6512, 11156, 22312, 30679, 44624, 61358, 103193, 122716, 206386, 245432, 412772, 490864, 825544, 1135123, 1651088, 2270246, 4540492, 9080984, 18161968]

約数ペア:

[(1, 18161968), (2, 9080984), (4, 4540492), (8, 2270246), (11, 1651088), (16, 1135123), (22, 825544), (37, 490864), (44, 412772), (74, 245432), (88, 206386), (148, 122716), (176, 103193), (296, 61358), (407, 44624), (592, 30679), (814, 22312), (1628, 11156), (2789, 6512), (3256, 5578)]