21586565

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 15185275

約数列:

[1, 5, 7, 11, 13, 19, 35, 55, 65, 77, 91, 95, 133, 143, 209, 227, 247, 385, 455, 665, 715, 1001, 1045, 1135, 1235, 1463, 1589, 1729, 2497, 2717, 2951, 4313, 5005, 7315, 7945, 8645, 12485, 13585, 14755, 17479, 19019, 20657, 21565, 30191, 32461, 47443, 56069, 87395, 95095, 103285, 150955, 162305, 227227, 237215, 280345, 332101, 392483, 616759, 1136135, 1660505, 1962415, 3083795, 4317313, 21586565]

約数ペア:

[(1, 21586565), (5, 4317313), (7, 3083795), (11, 1962415), (13, 1660505), (19, 1136135), (35, 616759), (55, 392483), (65, 332101), (77, 280345), (91, 237215), (95, 227227), (133, 162305), (143, 150955), (209, 103285), (227, 95095), (247, 87395), (385, 56069), (455, 47443), (665, 32461), (715, 30191), (1001, 21565), (1045, 20657), (1135, 19019), (1235, 17479), (1463, 14755), (1589, 13585), (1729, 12485), (2497, 8645), (2717, 7945), (2951, 7315), (4313, 5005)]