21000331736

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1\times {\mathrm{3089}}^1$

素因数の和:3552

約数の個数: 64

約数和(自身を含む): 41292288000

約数和(自身を除く): 20291956264

約数列:

[1, 2, 4, 8, 31, 62, 79, 124, 158, 248, 316, 347, 632, 694, 1388, 2449, 2776, 3089, 4898, 6178, 9796, 10757, 12356, 19592, 21514, 24712, 27413, 43028, 54826, 86056, 95759, 109652, 191518, 219304, 244031, 383036, 488062, 766072, 849803, 976124, 1071883, 1699606, 1952248, 2143766, 3399212, 4287532, 6798424, 7564961, 8575064, 15129922, 30259844, 33228373, 60519688, 66456746, 84678757, 132913492, 169357514, 265826984, 338715028, 677430056, 2625041467, 5250082934, 10500165868, 21000331736]

約数ペア:

[(1, 21000331736), (2, 10500165868), (4, 5250082934), (8, 2625041467), (31, 677430056), (62, 338715028), (79, 265826984), (124, 169357514), (158, 132913492), (248, 84678757), (316, 66456746), (347, 60519688), (632, 33228373), (694, 30259844), (1388, 15129922), (2449, 8575064), (2776, 7564961), (3089, 6798424), (4898, 4287532), (6178, 3399212), (9796, 2143766), (10757, 1952248), (12356, 1699606), (19592, 1071883), (21514, 976124), (24712, 849803), (27413, 766072), (43028, 488062), (54826, 383036), (86056, 244031), (95759, 219304), (109652, 191518)]