20851535895

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{211}}^1\times {\mathrm{2029}}^1$

素因数の和:2456

約数の個数: 64

約数和(自身を含む): 35695779840

約数和(自身を除く): 14844243945

約数列:

[1, 3, 5, 15, 17, 51, 85, 191, 211, 255, 573, 633, 955, 1055, 2029, 2865, 3165, 3247, 3587, 6087, 9741, 10145, 10761, 16235, 17935, 30435, 34493, 40301, 48705, 53805, 103479, 120903, 172465, 201505, 387539, 428119, 517395, 604515, 685117, 1162617, 1284357, 1937695, 2055351, 2140595, 3425585, 5813085, 6421785, 6588163, 7278023, 10276755, 19764489, 21834069, 32940815, 36390115, 81770729, 98822445, 109170345, 245312187, 408853645, 1226560935, 1390102393, 4170307179, 6950511965, 20851535895]

約数ペア:

[(1, 20851535895), (3, 6950511965), (5, 4170307179), (15, 1390102393), (17, 1226560935), (51, 408853645), (85, 245312187), (191, 109170345), (211, 98822445), (255, 81770729), (573, 36390115), (633, 32940815), (955, 21834069), (1055, 19764489), (2029, 10276755), (2865, 7278023), (3165, 6588163), (3247, 6421785), (3587, 5813085), (6087, 3425585), (9741, 2140595), (10145, 2055351), (10761, 1937695), (16235, 1284357), (17935, 1162617), (30435, 685117), (34493, 604515), (40301, 517395), (48705, 428119), (53805, 387539), (103479, 201505), (120903, 172465)]