21865860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{367}}^1$

素因数の和:713

約数の個数: 72

約数和(自身を含む): 66708096

約数和(自身を除く): 44842236

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 331, 367, 662, 734, 993, 1101, 1324, 1468, 1655, 1835, 1986, 2202, 2979, 3303, 3310, 3670, 3972, 4404, 4965, 5505, 5958, 6606, 6620, 7340, 9930, 11010, 11916, 13212, 14895, 16515, 19860, 22020, 29790, 33030, 59580, 66060, 121477, 242954, 364431, 485908, 607385, 728862, 1093293, 1214770, 1457724, 1822155, 2186586, 2429540, 3644310, 4373172, 5466465, 7288620, 10932930, 21865860]

約数ペア:

[(1, 21865860), (2, 10932930), (3, 7288620), (4, 5466465), (5, 4373172), (6, 3644310), (9, 2429540), (10, 2186586), (12, 1822155), (15, 1457724), (18, 1214770), (20, 1093293), (30, 728862), (36, 607385), (45, 485908), (60, 364431), (90, 242954), (180, 121477), (331, 66060), (367, 59580), (662, 33030), (734, 29790), (993, 22020), (1101, 19860), (1324, 16515), (1468, 14895), (1655, 13212), (1835, 11916), (1986, 11010), (2202, 9930), (2979, 7340), (3303, 6620), (3310, 6606), (3670, 5958), (3972, 5505), (4404, 4965)]