81531954

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{215693}}^1$

素因数の和:215711

約数の個数: 32

約数和(自身を含む): 207066240

約数和(自身を除く): 125534286

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 215693, 431386, 647079, 1294158, 1509851, 1941237, 3019702, 3882474, 4529553, 5823711, 9059106, 11647422, 13588659, 27177318, 40765977, 81531954]

約数ペア:

[(1, 81531954), (2, 40765977), (3, 27177318), (6, 13588659), (7, 11647422), (9, 9059106), (14, 5823711), (18, 4529553), (21, 3882474), (27, 3019702), (42, 1941237), (54, 1509851), (63, 1294158), (126, 647079), (189, 431386), (378, 215693)]