21143190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{67}}^2\times {\mathrm{157}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 51840432

約数和(自身を除く): 30697242

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 67, 134, 157, 201, 314, 335, 402, 471, 670, 785, 942, 1005, 1570, 2010, 2355, 4489, 4710, 8978, 10519, 13467, 21038, 22445, 26934, 31557, 44890, 52595, 63114, 67335, 105190, 134670, 157785, 315570, 704773, 1409546, 2114319, 3523865, 4228638, 7047730, 10571595, 21143190]

約数ペア:

[(1, 21143190), (2, 10571595), (3, 7047730), (5, 4228638), (6, 3523865), (10, 2114319), (15, 1409546), (30, 704773), (67, 315570), (134, 157785), (157, 134670), (201, 105190), (314, 67335), (335, 63114), (402, 52595), (471, 44890), (670, 31557), (785, 26934), (942, 22445), (1005, 21038), (1570, 13467), (2010, 10519), (2355, 8978), (4489, 4710)]