19828172

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:151

約数の個数: 96

約数和(自身を含む): 46663680

約数和(自身を除く): 26835508

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 47, 52, 61, 76, 91, 94, 122, 133, 182, 188, 244, 247, 266, 329, 364, 427, 494, 532, 611, 658, 793, 854, 893, 988, 1159, 1222, 1316, 1586, 1708, 1729, 1786, 2318, 2444, 2867, 3172, 3458, 3572, 4277, 4636, 5551, 5734, 6251, 6916, 8113, 8554, 11102, 11468, 11609, 12502, 15067, 16226, 17108, 20069, 22204, 23218, 25004, 30134, 32452, 37271, 40138, 46436, 54473, 60268, 74542, 80276, 81263, 105469, 108946, 149084, 162526, 210938, 217892, 260897, 325052, 381311, 421876, 521794, 708149, 762622, 1043588, 1416298, 1525244, 2832596, 4957043, 9914086, 19828172]

約数ペア:

[(1, 19828172), (2, 9914086), (4, 4957043), (7, 2832596), (13, 1525244), (14, 1416298), (19, 1043588), (26, 762622), (28, 708149), (38, 521794), (47, 421876), (52, 381311), (61, 325052), (76, 260897), (91, 217892), (94, 210938), (122, 162526), (133, 149084), (182, 108946), (188, 105469), (244, 81263), (247, 80276), (266, 74542), (329, 60268), (364, 54473), (427, 46436), (494, 40138), (532, 37271), (611, 32452), (658, 30134), (793, 25004), (854, 23218), (893, 22204), (988, 20069), (1159, 17108), (1222, 16226), (1316, 15067), (1586, 12502), (1708, 11609), (1729, 11468), (1786, 11102), (2318, 8554), (2444, 8113), (2867, 6916), (3172, 6251), (3458, 5734), (3572, 5551), (4277, 4636)]