21429100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^3\times {\mathrm{23}}^1$

素因数の和:77

約数の個数: 144

約数和(自身を含む): 60996096

約数和(自身を除く): 39566996

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 25, 28, 35, 44, 46, 50, 55, 70, 77, 92, 100, 110, 115, 121, 140, 154, 161, 175, 220, 230, 242, 253, 275, 308, 322, 350, 385, 460, 484, 506, 550, 575, 605, 644, 700, 770, 805, 847, 1012, 1100, 1150, 1210, 1265, 1331, 1540, 1610, 1694, 1771, 1925, 2300, 2420, 2530, 2662, 2783, 3025, 3220, 3388, 3542, 3850, 4025, 4235, 5060, 5324, 5566, 6050, 6325, 6655, 7084, 7700, 8050, 8470, 8855, 9317, 11132, 12100, 12650, 13310, 13915, 16100, 16940, 17710, 18634, 19481, 21175, 25300, 26620, 27830, 30613, 33275, 35420, 37268, 38962, 42350, 44275, 46585, 55660, 61226, 66550, 69575, 77924, 84700, 88550, 93170, 97405, 122452, 133100, 139150, 153065, 177100, 186340, 194810, 214291, 232925, 278300, 306130, 389620, 428582, 465850, 487025, 612260, 765325, 857164, 931700, 974050, 1071455, 1530650, 1948100, 2142910, 3061300, 4285820, 5357275, 10714550, 21429100]

約数ペア:

[(1, 21429100), (2, 10714550), (4, 5357275), (5, 4285820), (7, 3061300), (10, 2142910), (11, 1948100), (14, 1530650), (20, 1071455), (22, 974050), (23, 931700), (25, 857164), (28, 765325), (35, 612260), (44, 487025), (46, 465850), (50, 428582), (55, 389620), (70, 306130), (77, 278300), (92, 232925), (100, 214291), (110, 194810), (115, 186340), (121, 177100), (140, 153065), (154, 139150), (161, 133100), (175, 122452), (220, 97405), (230, 93170), (242, 88550), (253, 84700), (275, 77924), (308, 69575), (322, 66550), (350, 61226), (385, 55660), (460, 46585), (484, 44275), (506, 42350), (550, 38962), (575, 37268), (605, 35420), (644, 33275), (700, 30613), (770, 27830), (805, 26620), (847, 25300), (1012, 21175), (1100, 19481), (1150, 18634), (1210, 17710), (1265, 16940), (1331, 16100), (1540, 13915), (1610, 13310), (1694, 12650), (1771, 12100), (1925, 11132), (2300, 9317), (2420, 8855), (2530, 8470), (2662, 8050), (2783, 7700), (3025, 7084), (3220, 6655), (3388, 6325), (3542, 6050), (3850, 5566), (4025, 5324), (4235, 5060)]