21217518

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{56131}}^1$

素因数の和:56149

約数の個数: 32

約数和(自身を含む): 53886720

約数和(自身を除く): 32669202

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 56131, 112262, 168393, 336786, 392917, 505179, 785834, 1010358, 1178751, 1515537, 2357502, 3031074, 3536253, 7072506, 10608759, 21217518]

約数ペア:

[(1, 21217518), (2, 10608759), (3, 7072506), (6, 3536253), (7, 3031074), (9, 2357502), (14, 1515537), (18, 1178751), (21, 1010358), (27, 785834), (42, 505179), (54, 392917), (63, 336786), (126, 168393), (189, 112262), (378, 56131)]