19378216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1303}}^1$

素因数の和:1346

約数の個数: 48

約数和(自身を含む): 42953760

約数和(自身を除く): 23575544

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 169, 286, 338, 572, 676, 1144, 1303, 1352, 1859, 2606, 3718, 5212, 7436, 10424, 14333, 14872, 16939, 28666, 33878, 57332, 67756, 114664, 135512, 186329, 220207, 372658, 440414, 745316, 880828, 1490632, 1761656, 2422277, 4844554, 9689108, 19378216]

約数ペア:

[(1, 19378216), (2, 9689108), (4, 4844554), (8, 2422277), (11, 1761656), (13, 1490632), (22, 880828), (26, 745316), (44, 440414), (52, 372658), (88, 220207), (104, 186329), (143, 135512), (169, 114664), (286, 67756), (338, 57332), (572, 33878), (676, 28666), (1144, 16939), (1303, 14872), (1352, 14333), (1859, 10424), (2606, 7436), (3718, 5212)]