18935358

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 43352064

約数和(自身を除く): 24416706

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 41, 62, 78, 82, 93, 123, 186, 191, 246, 382, 403, 533, 573, 806, 1066, 1146, 1209, 1271, 1599, 2418, 2483, 2542, 3198, 3813, 4966, 5921, 7449, 7626, 7831, 11842, 14898, 15662, 16523, 17763, 23493, 33046, 35526, 46986, 49569, 76973, 99138, 101803, 153946, 203606, 230919, 242761, 305409, 461838, 485522, 610818, 728283, 1456566, 3155893, 6311786, 9467679, 18935358]

約数ペア:

[(1, 18935358), (2, 9467679), (3, 6311786), (6, 3155893), (13, 1456566), (26, 728283), (31, 610818), (39, 485522), (41, 461838), (62, 305409), (78, 242761), (82, 230919), (93, 203606), (123, 153946), (186, 101803), (191, 99138), (246, 76973), (382, 49569), (403, 46986), (533, 35526), (573, 33046), (806, 23493), (1066, 17763), (1146, 16523), (1209, 15662), (1271, 14898), (1599, 11842), (2418, 7831), (2483, 7626), (2542, 7449), (3198, 5921), (3813, 4966)]