65213757

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:263

約数の個数: 72

約数和(自身を含む): 118678560

約数和(自身を除く): 53464803

約数列:

[1, 3, 7, 9, 19, 21, 43, 49, 57, 63, 129, 133, 147, 171, 181, 301, 387, 399, 441, 543, 817, 903, 931, 1197, 1267, 1629, 2107, 2451, 2709, 2793, 3439, 3801, 5719, 6321, 7353, 7783, 8379, 8869, 10317, 11403, 17157, 18963, 23349, 24073, 26607, 30951, 40033, 51471, 54481, 70047, 72219, 79821, 120099, 147877, 163443, 168511, 216657, 360297, 381367, 443631, 490329, 505533, 1035139, 1144101, 1330893, 1516599, 3105417, 3432303, 7245973, 9316251, 21737919, 65213757]

約数ペア:

[(1, 65213757), (3, 21737919), (7, 9316251), (9, 7245973), (19, 3432303), (21, 3105417), (43, 1516599), (49, 1330893), (57, 1144101), (63, 1035139), (129, 505533), (133, 490329), (147, 443631), (171, 381367), (181, 360297), (301, 216657), (387, 168511), (399, 163443), (441, 147877), (543, 120099), (817, 79821), (903, 72219), (931, 70047), (1197, 54481), (1267, 51471), (1629, 40033), (2107, 30951), (2451, 26607), (2709, 24073), (2793, 23349), (3439, 18963), (3801, 17157), (5719, 11403), (6321, 10317), (7353, 8869), (7783, 8379)]