21303990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3533}}^1$

素因数の和:3613

約数の個数: 48

約数和(自身を含む): 56233008

約数和(自身を除く): 34929018

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, 3533, 6030, 7066, 10599, 17665, 21198, 31797, 35330, 52995, 63594, 105990, 158985, 236711, 317970, 473422, 710133, 1183555, 1420266, 2130399, 2367110, 3550665, 4260798, 7101330, 10651995, 21303990]

約数ペア:

[(1, 21303990), (2, 10651995), (3, 7101330), (5, 4260798), (6, 3550665), (9, 2367110), (10, 2130399), (15, 1420266), (18, 1183555), (30, 710133), (45, 473422), (67, 317970), (90, 236711), (134, 158985), (201, 105990), (335, 63594), (402, 52995), (603, 35330), (670, 31797), (1005, 21198), (1206, 17665), (2010, 10599), (3015, 7066), (3533, 6030)]