19929156

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:381

約数の個数: 72

約数和(自身を含む): 52141824

約数和(自身を除く): 32212668

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 169, 186, 317, 338, 372, 403, 507, 634, 676, 806, 951, 1014, 1209, 1268, 1612, 1902, 2028, 2418, 3804, 4121, 4836, 5239, 8242, 9827, 10478, 12363, 15717, 16484, 19654, 20956, 24726, 29481, 31434, 39308, 49452, 53573, 58962, 62868, 107146, 117924, 127751, 160719, 214292, 255502, 321438, 383253, 511004, 642876, 766506, 1533012, 1660763, 3321526, 4982289, 6643052, 9964578, 19929156]

約数ペア:

[(1, 19929156), (2, 9964578), (3, 6643052), (4, 4982289), (6, 3321526), (12, 1660763), (13, 1533012), (26, 766506), (31, 642876), (39, 511004), (52, 383253), (62, 321438), (78, 255502), (93, 214292), (124, 160719), (156, 127751), (169, 117924), (186, 107146), (317, 62868), (338, 58962), (372, 53573), (403, 49452), (507, 39308), (634, 31434), (676, 29481), (806, 24726), (951, 20956), (1014, 19654), (1209, 16484), (1268, 15717), (1612, 12363), (1902, 10478), (2028, 9827), (2418, 8242), (3804, 5239), (4121, 4836)]