18336291272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{431077}}^1$

素因数の和:431505

約数の個数: 32

約数和(自身を含む): 37115815800

約数和(自身を除く): 18779524528

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 409, 818, 1636, 3272, 5317, 10634, 21268, 42536, 431077, 862154, 1724308, 3448616, 5604001, 11208002, 22416004, 44832008, 176310493, 352620986, 705241972, 1410483944, 2292036409, 4584072818, 9168145636, 18336291272]

約数ペア:

[(1, 18336291272), (2, 9168145636), (4, 4584072818), (8, 2292036409), (13, 1410483944), (26, 705241972), (52, 352620986), (104, 176310493), (409, 44832008), (818, 22416004), (1636, 11208002), (3272, 5604001), (5317, 3448616), (10634, 1724308), (21268, 862154), (42536, 431077)]