21753690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1459}}^1$

素因数の和:1547

約数の個数: 64

約数和(自身を含む): 60549120

約数和(自身を除く): 38795430

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 71, 105, 142, 210, 213, 355, 426, 497, 710, 994, 1065, 1459, 1491, 2130, 2485, 2918, 2982, 4377, 4970, 7295, 7455, 8754, 10213, 14590, 14910, 20426, 21885, 30639, 43770, 51065, 61278, 102130, 103589, 153195, 207178, 306390, 310767, 517945, 621534, 725123, 1035890, 1450246, 1553835, 2175369, 3107670, 3625615, 4350738, 7251230, 10876845, 21753690]

約数ペア:

[(1, 21753690), (2, 10876845), (3, 7251230), (5, 4350738), (6, 3625615), (7, 3107670), (10, 2175369), (14, 1553835), (15, 1450246), (21, 1035890), (30, 725123), (35, 621534), (42, 517945), (70, 310767), (71, 306390), (105, 207178), (142, 153195), (210, 103589), (213, 102130), (355, 61278), (426, 51065), (497, 43770), (710, 30639), (994, 21885), (1065, 20426), (1459, 14910), (1491, 14590), (2130, 10213), (2485, 8754), (2918, 7455), (2982, 7295), (4377, 4970)]