21249012

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{239}}^2$

素因数の和:516

約数の個数: 36

約数和(自身を含む): 51395456

約数和(自身を除く): 30146444

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 186, 239, 372, 478, 717, 956, 1434, 2868, 7409, 14818, 22227, 29636, 44454, 57121, 88908, 114242, 171363, 228484, 342726, 685452, 1770751, 3541502, 5312253, 7083004, 10624506, 21249012]

約数ペア:

[(1, 21249012), (2, 10624506), (3, 7083004), (4, 5312253), (6, 3541502), (12, 1770751), (31, 685452), (62, 342726), (93, 228484), (124, 171363), (186, 114242), (239, 88908), (372, 57121), (478, 44454), (717, 29636), (956, 22227), (1434, 14818), (2868, 7409)]