21091720932

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{113039}}^1$

素因数の和:113193

約数の個数: 72

約数和(自身を含む): 54807217920

約数和(自身を除く): 33715496988

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 73, 142, 146, 213, 219, 284, 292, 426, 438, 639, 657, 852, 876, 1278, 1314, 2556, 2628, 5183, 10366, 15549, 20732, 31098, 46647, 62196, 93294, 113039, 186588, 226078, 339117, 452156, 678234, 1017351, 1356468, 2034702, 4069404, 8025769, 8251847, 16051538, 16503694, 24077307, 24755541, 32103076, 33007388, 48154614, 49511082, 72231921, 74266623, 96309228, 99022164, 144463842, 148533246, 288927684, 297066492, 585881137, 1171762274, 1757643411, 2343524548, 3515286822, 5272930233, 7030573644, 10545860466, 21091720932]

約数ペア:

[(1, 21091720932), (2, 10545860466), (3, 7030573644), (4, 5272930233), (6, 3515286822), (9, 2343524548), (12, 1757643411), (18, 1171762274), (36, 585881137), (71, 297066492), (73, 288927684), (142, 148533246), (146, 144463842), (213, 99022164), (219, 96309228), (284, 74266623), (292, 72231921), (426, 49511082), (438, 48154614), (639, 33007388), (657, 32103076), (852, 24755541), (876, 24077307), (1278, 16503694), (1314, 16051538), (2556, 8251847), (2628, 8025769), (5183, 4069404), (10366, 2034702), (15549, 1356468), (20732, 1017351), (31098, 678234), (46647, 452156), (62196, 339117), (93294, 226078), (113039, 186588)]