21855366

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 52899840

約数和(自身を除く): 31044474

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 163, 191, 234, 326, 351, 382, 489, 573, 702, 978, 1146, 1467, 1719, 2119, 2483, 2934, 3438, 4238, 4401, 4966, 5157, 6357, 7449, 8802, 10314, 12714, 14898, 19071, 22347, 31133, 38142, 44694, 57213, 62266, 67041, 93399, 114426, 134082, 186798, 280197, 404729, 560394, 809458, 840591, 1214187, 1681182, 2428374, 3642561, 7285122, 10927683, 21855366]

約数ペア:

[(1, 21855366), (2, 10927683), (3, 7285122), (6, 3642561), (9, 2428374), (13, 1681182), (18, 1214187), (26, 840591), (27, 809458), (39, 560394), (54, 404729), (78, 280197), (117, 186798), (163, 134082), (191, 114426), (234, 93399), (326, 67041), (351, 62266), (382, 57213), (489, 44694), (573, 38142), (702, 31133), (978, 22347), (1146, 19071), (1467, 14898), (1719, 12714), (2119, 10314), (2483, 8802), (2934, 7449), (3438, 6357), (4238, 5157), (4401, 4966)]