21324084400

素因数分解:

$2^4\times 5^2\times {\mathrm{757}}^1\times {\mathrm{70423}}^1$

素因数の和:71198

約数の個数: 60

約数和(自身を含む): 51299517712

約数和(自身を除く): 29975433312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 757, 1514, 3028, 3785, 6056, 7570, 12112, 15140, 18925, 30280, 37850, 60560, 70423, 75700, 140846, 151400, 281692, 302800, 352115, 563384, 704230, 1126768, 1408460, 1760575, 2816920, 3521150, 5633840, 7042300, 14084600, 28169200, 53310211, 106620422, 213240844, 266551055, 426481688, 533102110, 852963376, 1066204220, 1332755275, 2132408440, 2665510550, 4264816880, 5331021100, 10662042200, 21324084400]

約数ペア:

[(1, 21324084400), (2, 10662042200), (4, 5331021100), (5, 4264816880), (8, 2665510550), (10, 2132408440), (16, 1332755275), (20, 1066204220), (25, 852963376), (40, 533102110), (50, 426481688), (80, 266551055), (100, 213240844), (200, 106620422), (400, 53310211), (757, 28169200), (1514, 14084600), (3028, 7042300), (3785, 5633840), (6056, 3521150), (7570, 2816920), (12112, 1760575), (15140, 1408460), (18925, 1126768), (30280, 704230), (37850, 563384), (60560, 352115), (70423, 302800), (75700, 281692), (140846, 151400)]