71379819

素因数分解:

$3^3\times 7^2\times {\mathrm{163}}^1\times {\mathrm{331}}^1$

素因数の和:517

約数の個数: 48

約数和(自身を含む): 124141440

約数和(自身を除く): 52761621

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 163, 189, 331, 441, 489, 993, 1141, 1323, 1467, 2317, 2979, 3423, 4401, 6951, 7987, 8937, 10269, 16219, 20853, 23961, 30807, 48657, 53953, 62559, 71883, 145971, 161859, 215649, 377671, 437913, 485577, 1133013, 1456731, 2643697, 3399039, 7931091, 10197117, 23793273, 71379819]

約数ペア:

[(1, 71379819), (3, 23793273), (7, 10197117), (9, 7931091), (21, 3399039), (27, 2643697), (49, 1456731), (63, 1133013), (147, 485577), (163, 437913), (189, 377671), (331, 215649), (441, 161859), (489, 145971), (993, 71883), (1141, 62559), (1323, 53953), (1467, 48657), (2317, 30807), (2979, 23961), (3423, 20853), (4401, 16219), (6951, 10269), (7987, 8937)]