21897612

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^3\times {\mathrm{457}}^1$

素因数の和:500

約数の個数: 72

約数和(自身を含む): 61016592

約数和(自身を除く): 39118980

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 121, 132, 198, 242, 363, 396, 457, 484, 726, 914, 1089, 1331, 1371, 1452, 1828, 2178, 2662, 2742, 3993, 4113, 4356, 5027, 5324, 5484, 7986, 8226, 10054, 11979, 15081, 15972, 16452, 20108, 23958, 30162, 45243, 47916, 55297, 60324, 90486, 110594, 165891, 180972, 221188, 331782, 497673, 608267, 663564, 995346, 1216534, 1824801, 1990692, 2433068, 3649602, 5474403, 7299204, 10948806, 21897612]

約数ペア:

[(1, 21897612), (2, 10948806), (3, 7299204), (4, 5474403), (6, 3649602), (9, 2433068), (11, 1990692), (12, 1824801), (18, 1216534), (22, 995346), (33, 663564), (36, 608267), (44, 497673), (66, 331782), (99, 221188), (121, 180972), (132, 165891), (198, 110594), (242, 90486), (363, 60324), (396, 55297), (457, 47916), (484, 45243), (726, 30162), (914, 23958), (1089, 20108), (1331, 16452), (1371, 15972), (1452, 15081), (1828, 11979), (2178, 10054), (2662, 8226), (2742, 7986), (3993, 5484), (4113, 5324), (4356, 5027)]