21784968

素因数分解:

$2^3\times 3^2\times {\mathrm{443}}^1\times {\mathrm{683}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 59220720

約数和(自身を除く): 37435752

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 443, 683, 886, 1329, 1366, 1772, 2049, 2658, 2732, 3544, 3987, 4098, 5316, 5464, 6147, 7974, 8196, 10632, 12294, 15948, 16392, 24588, 31896, 49176, 302569, 605138, 907707, 1210276, 1815414, 2420552, 2723121, 3630828, 5446242, 7261656, 10892484, 21784968]

約数ペア:

[(1, 21784968), (2, 10892484), (3, 7261656), (4, 5446242), (6, 3630828), (8, 2723121), (9, 2420552), (12, 1815414), (18, 1210276), (24, 907707), (36, 605138), (72, 302569), (443, 49176), (683, 31896), (886, 24588), (1329, 16392), (1366, 15948), (1772, 12294), (2049, 10632), (2658, 8196), (2732, 7974), (3544, 6147), (3987, 5464), (4098, 5316)]