21708

素因数分解:

$2^2\times 3^4\times {\mathrm{67}}^1$

素因数の和:83

約数の個数: 30

約数和(自身を含む): 57596

約数和(自身を除く): 35888

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 67, 81, 108, 134, 162, 201, 268, 324, 402, 603, 804, 1206, 1809, 2412, 3618, 5427, 7236, 10854, 21708]

約数ペア:

[(1, 21708), (2, 10854), (3, 7236), (4, 5427), (6, 3618), (9, 2412), (12, 1809), (18, 1206), (27, 804), (36, 603), (54, 402), (67, 324), (81, 268), (108, 201), (134, 162)]