21640284

素因数分解:

$2^2\times 3^4\times {\mathrm{66791}}^1$

素因数の和:66807

約数の個数: 30

約数和(自身を含む): 56572824

約数和(自身を除く): 34932540

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 66791, 133582, 200373, 267164, 400746, 601119, 801492, 1202238, 1803357, 2404476, 3606714, 5410071, 7213428, 10820142, 21640284]

約数ペア:

[(1, 21640284), (2, 10820142), (3, 7213428), (4, 5410071), (6, 3606714), (9, 2404476), (12, 1803357), (18, 1202238), (27, 801492), (36, 601119), (54, 400746), (81, 267164), (108, 200373), (162, 133582), (324, 66791)]