20129778

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:927

約数の個数: 48

約数和(自身を含む): 46612800

約数和(自身を除く): 26483022

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 71, 114, 142, 171, 213, 342, 426, 639, 829, 1278, 1349, 1658, 2487, 2698, 4047, 4974, 7461, 8094, 12141, 14922, 15751, 24282, 31502, 47253, 58859, 94506, 117718, 141759, 176577, 283518, 353154, 529731, 1059462, 1118321, 2236642, 3354963, 6709926, 10064889, 20129778]

約数ペア:

[(1, 20129778), (2, 10064889), (3, 6709926), (6, 3354963), (9, 2236642), (18, 1118321), (19, 1059462), (38, 529731), (57, 353154), (71, 283518), (114, 176577), (142, 141759), (171, 117718), (213, 94506), (342, 58859), (426, 47253), (639, 31502), (829, 24282), (1278, 15751), (1349, 14922), (1658, 12141), (2487, 8094), (2698, 7461), (4047, 4974)]