28215369

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{733}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 51297792

約数和(自身を除く): 23082423

約数列:

[1, 3, 7, 9, 13, 21, 39, 47, 63, 91, 117, 141, 273, 329, 423, 611, 733, 819, 987, 1833, 2199, 2961, 4277, 5131, 5499, 6597, 9529, 12831, 15393, 28587, 34451, 38493, 46179, 66703, 85761, 103353, 200109, 241157, 310059, 447863, 600327, 723471, 1343589, 2170413, 3135041, 4030767, 9405123, 28215369]

約数ペア:

[(1, 28215369), (3, 9405123), (7, 4030767), (9, 3135041), (13, 2170413), (21, 1343589), (39, 723471), (47, 600327), (63, 447863), (91, 310059), (117, 241157), (141, 200109), (273, 103353), (329, 85761), (423, 66703), (611, 46179), (733, 38493), (819, 34451), (987, 28587), (1833, 15393), (2199, 12831), (2961, 9529), (4277, 6597), (5131, 5499)]