21250611879

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{216179}}^1$

素因数の和:216371

約数の個数: 32

約数和(自身を含む): 33647984640

約数和(自身を除く): 12397372761

約数列:

[1, 3, 7, 21, 31, 93, 151, 217, 453, 651, 1057, 3171, 4681, 14043, 32767, 98301, 216179, 648537, 1513253, 4539759, 6701549, 20104647, 32643029, 46910843, 97929087, 140732529, 228501203, 685503609, 1011933899, 3035801697, 7083537293, 21250611879]

約数ペア:

[(1, 21250611879), (3, 7083537293), (7, 3035801697), (21, 1011933899), (31, 685503609), (93, 228501203), (151, 140732529), (217, 97929087), (453, 46910843), (651, 32643029), (1057, 20104647), (3171, 6701549), (4681, 4539759), (14043, 1513253), (32767, 648537), (98301, 216179)]