20916396

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1$

素因数の和:471

約数の個数: 72

約数和(自身を含む): 55770624

約数和(自身を除く): 34854228

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 41, 74, 82, 111, 123, 148, 164, 222, 246, 333, 369, 383, 444, 492, 666, 738, 766, 1149, 1332, 1476, 1517, 1532, 2298, 3034, 3447, 4551, 4596, 6068, 6894, 9102, 13653, 13788, 14171, 15703, 18204, 27306, 28342, 31406, 42513, 47109, 54612, 56684, 62812, 85026, 94218, 127539, 141327, 170052, 188436, 255078, 282654, 510156, 565308, 581011, 1162022, 1743033, 2324044, 3486066, 5229099, 6972132, 10458198, 20916396]

約数ペア:

[(1, 20916396), (2, 10458198), (3, 6972132), (4, 5229099), (6, 3486066), (9, 2324044), (12, 1743033), (18, 1162022), (36, 581011), (37, 565308), (41, 510156), (74, 282654), (82, 255078), (111, 188436), (123, 170052), (148, 141327), (164, 127539), (222, 94218), (246, 85026), (333, 62812), (369, 56684), (383, 54612), (444, 47109), (492, 42513), (666, 31406), (738, 28342), (766, 27306), (1149, 18204), (1332, 15703), (1476, 14171), (1517, 13788), (1532, 13653), (2298, 9102), (3034, 6894), (3447, 6068), (4551, 4596)]