61818939

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 115026912

約数和(自身を除く): 53207973

約数列:

[1, 3, 7, 9, 13, 21, 39, 41, 49, 63, 91, 117, 123, 147, 263, 273, 287, 369, 441, 533, 637, 789, 819, 861, 1599, 1841, 1911, 2009, 2367, 2583, 3419, 3731, 4797, 5523, 5733, 6027, 10257, 10783, 11193, 12887, 16569, 18081, 23933, 26117, 30771, 32349, 33579, 38661, 71799, 75481, 78351, 97047, 115983, 140179, 167531, 215397, 226443, 235053, 420537, 502593, 528367, 679329, 981253, 1261611, 1507779, 1585101, 2943759, 4755303, 6868771, 8831277, 20606313, 61818939]

約数ペア:

[(1, 61818939), (3, 20606313), (7, 8831277), (9, 6868771), (13, 4755303), (21, 2943759), (39, 1585101), (41, 1507779), (49, 1261611), (63, 981253), (91, 679329), (117, 528367), (123, 502593), (147, 420537), (263, 235053), (273, 226443), (287, 215397), (369, 167531), (441, 140179), (533, 115983), (637, 97047), (789, 78351), (819, 75481), (861, 71799), (1599, 38661), (1841, 33579), (1911, 32349), (2009, 30771), (2367, 26117), (2583, 23933), (3419, 18081), (3731, 16569), (4797, 12887), (5523, 11193), (5733, 10783), (6027, 10257)]