21336974600

素因数分解:

$2^3\times 5^2\times {\mathrm{509}}^1\times {\mathrm{209597}}^1$

素因数の和:210122

約数の個数: 48

約数和(自身を含む): 49706165700

約数和(自身を除く): 28369191100

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 509, 1018, 2036, 2545, 4072, 5090, 10180, 12725, 20360, 25450, 50900, 101800, 209597, 419194, 838388, 1047985, 1676776, 2095970, 4191940, 5239925, 8383880, 10479850, 20959700, 41919400, 106684873, 213369746, 426739492, 533424365, 853478984, 1066848730, 2133697460, 2667121825, 4267394920, 5334243650, 10668487300, 21336974600]

約数ペア:

[(1, 21336974600), (2, 10668487300), (4, 5334243650), (5, 4267394920), (8, 2667121825), (10, 2133697460), (20, 1066848730), (25, 853478984), (40, 533424365), (50, 426739492), (100, 213369746), (200, 106684873), (509, 41919400), (1018, 20959700), (2036, 10479850), (2545, 8383880), (4072, 5239925), (5090, 4191940), (10180, 2095970), (12725, 1676776), (20360, 1047985), (25450, 838388), (50900, 419194), (101800, 209597)]