20708646

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 49282560

約数和(自身を除く): 28573914

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 59, 61, 118, 122, 137, 177, 183, 274, 354, 366, 411, 413, 427, 822, 826, 854, 959, 1239, 1281, 1918, 2478, 2562, 2877, 3599, 5754, 7198, 8083, 8357, 10797, 16166, 16714, 21594, 24249, 25071, 25193, 48498, 50142, 50386, 56581, 58499, 75579, 113162, 116998, 151158, 169743, 175497, 339486, 350994, 493063, 986126, 1479189, 2958378, 3451441, 6902882, 10354323, 20708646]

約数ペア:

[(1, 20708646), (2, 10354323), (3, 6902882), (6, 3451441), (7, 2958378), (14, 1479189), (21, 986126), (42, 493063), (59, 350994), (61, 339486), (118, 175497), (122, 169743), (137, 151158), (177, 116998), (183, 113162), (274, 75579), (354, 58499), (366, 56581), (411, 50386), (413, 50142), (427, 48498), (822, 25193), (826, 25071), (854, 24249), (959, 21594), (1239, 16714), (1281, 16166), (1918, 10797), (2478, 8357), (2562, 8083), (2877, 7198), (3599, 5754)]