21648616

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 48600000

約数和(自身を除く): 26951384

約数列:

[1, 2, 4, 8, 11, 17, 22, 29, 34, 44, 58, 68, 88, 116, 136, 187, 232, 319, 374, 493, 499, 638, 748, 986, 998, 1276, 1496, 1972, 1996, 2552, 3944, 3992, 5423, 5489, 8483, 10846, 10978, 14471, 16966, 21692, 21956, 28942, 33932, 43384, 43912, 57884, 67864, 93313, 115768, 159181, 186626, 246007, 318362, 373252, 492014, 636724, 746504, 984028, 1273448, 1968056, 2706077, 5412154, 10824308, 21648616]

約数ペア:

[(1, 21648616), (2, 10824308), (4, 5412154), (8, 2706077), (11, 1968056), (17, 1273448), (22, 984028), (29, 746504), (34, 636724), (44, 492014), (58, 373252), (68, 318362), (88, 246007), (116, 186626), (136, 159181), (187, 115768), (232, 93313), (319, 67864), (374, 57884), (493, 43912), (499, 43384), (638, 33932), (748, 28942), (986, 21956), (998, 21692), (1276, 16966), (1496, 14471), (1972, 10978), (1996, 10846), (2552, 8483), (3944, 5489), (3992, 5423)]