21237970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7103}}^1$

素因数の和:7146

約数の個数: 32

約数和(自身を含む): 42964992

約数和(自身を除く): 21727022

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 7103, 14206, 35515, 71030, 92339, 163369, 184678, 326738, 461695, 816845, 923390, 1633690, 2123797, 4247594, 10618985, 21237970]

約数ペア:

[(1, 21237970), (2, 10618985), (5, 4247594), (10, 2123797), (13, 1633690), (23, 923390), (26, 816845), (46, 461695), (65, 326738), (115, 184678), (130, 163369), (230, 92339), (299, 71030), (598, 35515), (1495, 14206), (2990, 7103)]