81386942

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{331}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 154192752

約数和(自身を除く): 72805810

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 193, 331, 386, 637, 662, 1274, 1351, 2317, 2509, 2702, 4303, 4634, 5018, 8606, 9457, 16219, 17563, 18914, 30121, 32438, 35126, 60242, 63883, 122941, 127766, 210847, 245882, 421694, 447181, 830479, 894362, 1660958, 3130267, 5813353, 6260534, 11626706, 40693471, 81386942]

約数ペア:

[(1, 81386942), (2, 40693471), (7, 11626706), (13, 6260534), (14, 5813353), (26, 3130267), (49, 1660958), (91, 894362), (98, 830479), (182, 447181), (193, 421694), (331, 245882), (386, 210847), (637, 127766), (662, 122941), (1274, 63883), (1351, 60242), (2317, 35126), (2509, 32438), (2702, 30121), (4303, 18914), (4634, 17563), (5018, 16219), (8606, 9457)]