20458845

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{599}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 21013155

約数列:

[1, 3, 5, 9, 11, 15, 23, 27, 33, 45, 55, 69, 99, 115, 135, 165, 207, 253, 297, 345, 495, 599, 621, 759, 1035, 1265, 1485, 1797, 2277, 2995, 3105, 3795, 5391, 6589, 6831, 8985, 11385, 13777, 16173, 19767, 26955, 32945, 34155, 41331, 59301, 68885, 80865, 98835, 123993, 151547, 177903, 206655, 296505, 371979, 454641, 619965, 757735, 889515, 1363923, 1859895, 2273205, 4091769, 6819615, 20458845]

約数ペア:

[(1, 20458845), (3, 6819615), (5, 4091769), (9, 2273205), (11, 1859895), (15, 1363923), (23, 889515), (27, 757735), (33, 619965), (45, 454641), (55, 371979), (69, 296505), (99, 206655), (115, 177903), (135, 151547), (165, 123993), (207, 98835), (253, 80865), (297, 68885), (345, 59301), (495, 41331), (599, 34155), (621, 32945), (759, 26955), (1035, 19767), (1265, 16173), (1485, 13777), (1797, 11385), (2277, 8985), (2995, 6831), (3105, 6589), (3795, 5391)]