19805604

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2591}}^1$

素因数の和:2625

約数の個数: 72

約数和(自身を含む): 57915648

約数和(自身を除く): 38110044

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 49, 52, 78, 84, 91, 98, 147, 156, 182, 196, 273, 294, 364, 546, 588, 637, 1092, 1274, 1911, 2548, 2591, 3822, 5182, 7644, 7773, 10364, 15546, 18137, 31092, 33683, 36274, 54411, 67366, 72548, 101049, 108822, 126959, 134732, 202098, 217644, 235781, 253918, 380877, 404196, 471562, 507836, 707343, 761754, 943124, 1414686, 1523508, 1650467, 2829372, 3300934, 4951401, 6601868, 9902802, 19805604]

約数ペア:

[(1, 19805604), (2, 9902802), (3, 6601868), (4, 4951401), (6, 3300934), (7, 2829372), (12, 1650467), (13, 1523508), (14, 1414686), (21, 943124), (26, 761754), (28, 707343), (39, 507836), (42, 471562), (49, 404196), (52, 380877), (78, 253918), (84, 235781), (91, 217644), (98, 202098), (147, 134732), (156, 126959), (182, 108822), (196, 101049), (273, 72548), (294, 67366), (364, 54411), (546, 36274), (588, 33683), (637, 31092), (1092, 18137), (1274, 15546), (1911, 10364), (2548, 7773), (2591, 7644), (3822, 5182)]