18910424

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 39132720

約数和(自身を除く): 20222296

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 169, 197, 284, 338, 394, 568, 676, 788, 923, 1352, 1576, 1846, 2561, 3692, 5122, 7384, 10244, 11999, 13987, 20488, 23998, 27974, 33293, 47996, 55948, 66586, 95992, 111896, 133172, 181831, 266344, 363662, 727324, 1454648, 2363803, 4727606, 9455212, 18910424]

約数ペア:

[(1, 18910424), (2, 9455212), (4, 4727606), (8, 2363803), (13, 1454648), (26, 727324), (52, 363662), (71, 266344), (104, 181831), (142, 133172), (169, 111896), (197, 95992), (284, 66586), (338, 55948), (394, 47996), (568, 33293), (676, 27974), (788, 23998), (923, 20488), (1352, 13987), (1576, 11999), (1846, 10244), (2561, 7384), (3692, 5122)]