861308

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1649

約数の個数: 24

約数和(自身を含む): 1814400

約数和(自身を除く): 953092

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 1619, 3238, 6476, 11333, 22666, 30761, 45332, 61522, 123044, 215327, 430654, 861308]

約数ペア:

[(1, 861308), (2, 430654), (4, 215327), (7, 123044), (14, 61522), (19, 45332), (28, 30761), (38, 22666), (76, 11333), (133, 6476), (266, 3238), (532, 1619)]