18243472

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{631}}^1$

素因数の和:791

約数の個数: 40

約数和(自身を含む): 38400320

約数和(自身を除く): 20156848

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 139, 208, 278, 556, 631, 1112, 1262, 1807, 2224, 2524, 3614, 5048, 7228, 8203, 10096, 14456, 16406, 28912, 32812, 65624, 87709, 131248, 175418, 350836, 701672, 1140217, 1403344, 2280434, 4560868, 9121736, 18243472]

約数ペア:

[(1, 18243472), (2, 9121736), (4, 4560868), (8, 2280434), (13, 1403344), (16, 1140217), (26, 701672), (52, 350836), (104, 175418), (139, 131248), (208, 87709), (278, 65624), (556, 32812), (631, 28912), (1112, 16406), (1262, 14456), (1807, 10096), (2224, 8203), (2524, 7228), (3614, 5048)]