28724906

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 51408000

約数和(自身を除く): 22683094

約数列:

[1, 2, 7, 14, 29, 58, 139, 203, 278, 406, 509, 973, 1018, 1946, 3563, 4031, 7126, 8062, 14761, 28217, 29522, 56434, 70751, 103327, 141502, 206654, 495257, 990514, 2051779, 4103558, 14362453, 28724906]

約数ペア:

[(1, 28724906), (2, 14362453), (7, 4103558), (14, 2051779), (29, 990514), (58, 495257), (139, 206654), (203, 141502), (278, 103327), (406, 70751), (509, 56434), (973, 29522), (1018, 28217), (1946, 14761), (3563, 8062), (4031, 7126)]