21228090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 96

約数和(自身を含む): 56920320

約数和(自身を除く): 35692230

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 53, 65, 78, 79, 106, 130, 158, 159, 169, 195, 237, 265, 318, 338, 390, 395, 474, 507, 530, 689, 790, 795, 845, 1014, 1027, 1185, 1378, 1590, 1690, 2054, 2067, 2370, 2535, 3081, 3445, 4134, 4187, 5070, 5135, 6162, 6890, 8374, 8957, 10270, 10335, 12561, 13351, 15405, 17914, 20670, 20935, 25122, 26702, 26871, 30810, 40053, 41870, 44785, 53742, 54431, 62805, 66755, 80106, 89570, 108862, 125610, 133510, 134355, 163293, 200265, 268710, 272155, 326586, 400530, 544310, 707603, 816465, 1415206, 1632930, 2122809, 3538015, 4245618, 7076030, 10614045, 21228090]

約数ペア:

[(1, 21228090), (2, 10614045), (3, 7076030), (5, 4245618), (6, 3538015), (10, 2122809), (13, 1632930), (15, 1415206), (26, 816465), (30, 707603), (39, 544310), (53, 400530), (65, 326586), (78, 272155), (79, 268710), (106, 200265), (130, 163293), (158, 134355), (159, 133510), (169, 125610), (195, 108862), (237, 89570), (265, 80106), (318, 66755), (338, 62805), (390, 54431), (395, 53742), (474, 44785), (507, 41870), (530, 40053), (689, 30810), (790, 26871), (795, 26702), (845, 25122), (1014, 20935), (1027, 20670), (1185, 17914), (1378, 15405), (1590, 13351), (1690, 12561), (2054, 10335), (2067, 10270), (2370, 8957), (2535, 8374), (3081, 6890), (3445, 6162), (4134, 5135), (4187, 5070)]