20813521716

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{10903}}^1\times {\mathrm{4079}}^1$

素因数の和:15005

約数の個数: 72

約数和(自身を含む): 56678119680

約数和(自身を除く): 35864597964

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 4079, 8158, 10903, 12237, 16316, 21806, 24474, 32709, 36711, 43612, 48948, 53027, 65418, 73422, 98127, 106054, 130836, 141739, 146844, 159081, 196254, 212108, 283478, 318162, 392508, 425217, 477243, 566956, 636324, 850434, 954486, 1275651, 1700868, 1908972, 2551302, 5102604, 44473337, 88946674, 133420011, 177893348, 266840022, 400260033, 533680044, 578153381, 800520066, 1156306762, 1601040132, 1734460143, 2312613524, 3468920286, 5203380429, 6937840572, 10406760858, 20813521716]

約数ペア:

[(1, 20813521716), (2, 10406760858), (3, 6937840572), (4, 5203380429), (6, 3468920286), (9, 2312613524), (12, 1734460143), (13, 1601040132), (18, 1156306762), (26, 800520066), (36, 578153381), (39, 533680044), (52, 400260033), (78, 266840022), (117, 177893348), (156, 133420011), (234, 88946674), (468, 44473337), (4079, 5102604), (8158, 2551302), (10903, 1908972), (12237, 1700868), (16316, 1275651), (21806, 954486), (24474, 850434), (32709, 636324), (36711, 566956), (43612, 477243), (48948, 425217), (53027, 392508), (65418, 318162), (73422, 283478), (98127, 212108), (106054, 196254), (130836, 159081), (141739, 146844)]