21955860

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13553}}^1$

素因数の和:13574

約数の個数: 60

約数和(自身を含む): 68881428

約数和(自身を除く): 46925568

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 13553, 27106, 40659, 54212, 67765, 81318, 121977, 135530, 162636, 203295, 243954, 271060, 365931, 406590, 487908, 609885, 731862, 813180, 1097793, 1219770, 1463724, 1829655, 2195586, 2439540, 3659310, 4391172, 5488965, 7318620, 10977930, 21955860]

約数ペア:

[(1, 21955860), (2, 10977930), (3, 7318620), (4, 5488965), (5, 4391172), (6, 3659310), (9, 2439540), (10, 2195586), (12, 1829655), (15, 1463724), (18, 1219770), (20, 1097793), (27, 813180), (30, 731862), (36, 609885), (45, 487908), (54, 406590), (60, 365931), (81, 271060), (90, 243954), (108, 203295), (135, 162636), (162, 135530), (180, 121977), (270, 81318), (324, 67765), (405, 54212), (540, 40659), (810, 27106), (1620, 13553)]