81474946

素因数分解:

$2^1\times 7^2\times {\mathrm{641}}^1\times {\mathrm{1297}}^1$

素因数の和:1954

約数の個数: 24

約数和(自身を含む): 142497036

約数和(自身を除く): 61022090

約数列:

[1, 2, 7, 14, 49, 98, 641, 1282, 1297, 2594, 4487, 8974, 9079, 18158, 31409, 62818, 63553, 127106, 831377, 1662754, 5819639, 11639278, 40737473, 81474946]

約数ペア:

[(1, 81474946), (2, 40737473), (7, 11639278), (14, 5819639), (49, 1662754), (98, 831377), (641, 127106), (1282, 63553), (1297, 62818), (2594, 31409), (4487, 18158), (8974, 9079)]