21000398490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{3907}}^1\times {\mathrm{59723}}^1$

素因数の和:63643

約数の個数: 48

約数和(自身を含む): 54615925728

約数和(自身を除く): 33615527238

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 3907, 7814, 11721, 19535, 23442, 35163, 39070, 58605, 59723, 70326, 117210, 119446, 175815, 179169, 298615, 351630, 358338, 537507, 597230, 895845, 1075014, 1791690, 2687535, 5375070, 233337761, 466675522, 700013283, 1166688805, 1400026566, 2100039849, 2333377610, 3500066415, 4200079698, 7000132830, 10500199245, 21000398490]

約数ペア:

[(1, 21000398490), (2, 10500199245), (3, 7000132830), (5, 4200079698), (6, 3500066415), (9, 2333377610), (10, 2100039849), (15, 1400026566), (18, 1166688805), (30, 700013283), (45, 466675522), (90, 233337761), (3907, 5375070), (7814, 2687535), (11721, 1791690), (19535, 1075014), (23442, 895845), (35163, 597230), (39070, 537507), (58605, 358338), (59723, 351630), (70326, 298615), (117210, 179169), (119446, 175815)]