21396324

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{509}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 52093440

約数和(自身を除く): 30697116

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 113, 124, 186, 226, 339, 372, 452, 509, 678, 1018, 1356, 1527, 2036, 3054, 3503, 6108, 7006, 10509, 14012, 15779, 21018, 31558, 42036, 47337, 57517, 63116, 94674, 115034, 172551, 189348, 230068, 345102, 690204, 1783027, 3566054, 5349081, 7132108, 10698162, 21396324]

約数ペア:

[(1, 21396324), (2, 10698162), (3, 7132108), (4, 5349081), (6, 3566054), (12, 1783027), (31, 690204), (62, 345102), (93, 230068), (113, 189348), (124, 172551), (186, 115034), (226, 94674), (339, 63116), (372, 57517), (452, 47337), (509, 42036), (678, 31558), (1018, 21018), (1356, 15779), (1527, 14012), (2036, 10509), (3054, 7006), (3503, 6108)]