20171801727

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{947}}^1\times {\mathrm{4391}}^1$

素因数の和:5369

約数の個数: 72

約数和(自身を含む): 37022873472

約数和(自身を除く): 16851071745

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 947, 1617, 2841, 4391, 4851, 6629, 8523, 10417, 13173, 19887, 30737, 31251, 39519, 46403, 48301, 59661, 72919, 92211, 93753, 139209, 144903, 215159, 218757, 276633, 338107, 417627, 434709, 510433, 645477, 656271, 1014321, 1531299, 1936431, 2366749, 3042963, 4158277, 4593897, 7100247, 12474831, 21300741, 29107939, 37424493, 45741047, 87323817, 137223141, 203755573, 261971451, 320187329, 411669423, 611266719, 960561987, 1833800157, 2241311303, 2881685961, 6723933909, 20171801727]

約数ペア:

[(1, 20171801727), (3, 6723933909), (7, 2881685961), (9, 2241311303), (11, 1833800157), (21, 960561987), (33, 611266719), (49, 411669423), (63, 320187329), (77, 261971451), (99, 203755573), (147, 137223141), (231, 87323817), (441, 45741047), (539, 37424493), (693, 29107939), (947, 21300741), (1617, 12474831), (2841, 7100247), (4391, 4593897), (4851, 4158277), (6629, 3042963), (8523, 2366749), (10417, 1936431), (13173, 1531299), (19887, 1014321), (30737, 656271), (31251, 645477), (39519, 510433), (46403, 434709), (48301, 417627), (59661, 338107), (72919, 276633), (92211, 218757), (93753, 215159), (139209, 144903)]