21919758

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{10651}}^1$

素因数の和:10677

約数の個数: 32

約数和(自身を含む): 51129600

約数和(自身を除く): 29209842

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 343, 686, 1029, 2058, 10651, 21302, 31953, 63906, 74557, 149114, 223671, 447342, 521899, 1043798, 1565697, 3131394, 3653293, 7306586, 10959879, 21919758]

約数ペア:

[(1, 21919758), (2, 10959879), (3, 7306586), (6, 3653293), (7, 3131394), (14, 1565697), (21, 1043798), (42, 521899), (49, 447342), (98, 223671), (147, 149114), (294, 74557), (343, 63906), (686, 31953), (1029, 21302), (2058, 10651)]