21847870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 23771330

約数列:

[1, 2, 5, 10, 11, 22, 31, 43, 55, 62, 86, 110, 149, 155, 215, 298, 310, 341, 430, 473, 682, 745, 946, 1333, 1490, 1639, 1705, 2365, 2666, 3278, 3410, 4619, 4730, 6407, 6665, 8195, 9238, 12814, 13330, 14663, 16390, 23095, 29326, 32035, 46190, 50809, 64070, 70477, 73315, 101618, 140954, 146630, 198617, 254045, 352385, 397234, 508090, 704770, 993085, 1986170, 2184787, 4369574, 10923935, 21847870]

約数ペア:

[(1, 21847870), (2, 10923935), (5, 4369574), (10, 2184787), (11, 1986170), (22, 993085), (31, 704770), (43, 508090), (55, 397234), (62, 352385), (86, 254045), (110, 198617), (149, 146630), (155, 140954), (215, 101618), (298, 73315), (310, 70477), (341, 64070), (430, 50809), (473, 46190), (682, 32035), (745, 29326), (946, 23095), (1333, 16390), (1490, 14663), (1639, 13330), (1705, 12814), (2365, 9238), (2666, 8195), (3278, 6665), (3410, 6407), (4619, 4730)]