21193214

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:404

約数の個数: 32

約数和(自身を含む): 37402560

約数和(自身を除く): 16209346

約数列:

[1, 2, 7, 14, 73, 89, 146, 178, 233, 466, 511, 623, 1022, 1246, 1631, 3262, 6497, 12994, 17009, 20737, 34018, 41474, 45479, 90958, 119063, 145159, 238126, 290318, 1513801, 3027602, 10596607, 21193214]

約数ペア:

[(1, 21193214), (2, 10596607), (7, 3027602), (14, 1513801), (73, 290318), (89, 238126), (146, 145159), (178, 119063), (233, 90958), (466, 45479), (511, 41474), (623, 34018), (1022, 20737), (1246, 17009), (1631, 12994), (3262, 6497)]