21279870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3529}}^1$

素因数の和:3609

約数の個数: 48

約数和(自身を含む): 56169360

約数和(自身を除く): 34889490

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 67, 90, 134, 201, 335, 402, 603, 670, 1005, 1206, 2010, 3015, 3529, 6030, 7058, 10587, 17645, 21174, 31761, 35290, 52935, 63522, 105870, 158805, 236443, 317610, 472886, 709329, 1182215, 1418658, 2127987, 2364430, 3546645, 4255974, 7093290, 10639935, 21279870]

約数ペア:

[(1, 21279870), (2, 10639935), (3, 7093290), (5, 4255974), (6, 3546645), (9, 2364430), (10, 2127987), (15, 1418658), (18, 1182215), (30, 709329), (45, 472886), (67, 317610), (90, 236443), (134, 158805), (201, 105870), (335, 63522), (402, 52935), (603, 35290), (670, 31761), (1005, 21174), (1206, 17645), (2010, 10587), (3015, 7058), (3529, 6030)]