21009576

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1583}}^1$

素因数の和:1678

約数の個数: 64

約数和(自身を含む): 60825600

約数和(自身を除く): 39816024

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 79, 84, 158, 168, 237, 316, 474, 553, 632, 948, 1106, 1583, 1659, 1896, 2212, 3166, 3318, 4424, 4749, 6332, 6636, 9498, 11081, 12664, 13272, 18996, 22162, 33243, 37992, 44324, 66486, 88648, 125057, 132972, 250114, 265944, 375171, 500228, 750342, 875399, 1000456, 1500684, 1750798, 2626197, 3001368, 3501596, 5252394, 7003192, 10504788, 21009576]

約数ペア:

[(1, 21009576), (2, 10504788), (3, 7003192), (4, 5252394), (6, 3501596), (7, 3001368), (8, 2626197), (12, 1750798), (14, 1500684), (21, 1000456), (24, 875399), (28, 750342), (42, 500228), (56, 375171), (79, 265944), (84, 250114), (158, 132972), (168, 125057), (237, 88648), (316, 66486), (474, 44324), (553, 37992), (632, 33243), (948, 22162), (1106, 18996), (1583, 13272), (1659, 12664), (1896, 11081), (2212, 9498), (3166, 6636), (3318, 6332), (4424, 4749)]