21055160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2593}}^1$

素因数の和:2640

約数の個数: 64

約数和(自身を含む): 56030400

約数和(自身を除く): 34975240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 2593, 4060, 5186, 8120, 10372, 12965, 18151, 20744, 25930, 36302, 51860, 72604, 75197, 90755, 103720, 145208, 150394, 181510, 300788, 363020, 375985, 526379, 601576, 726040, 751970, 1052758, 1503940, 2105516, 2631895, 3007880, 4211032, 5263790, 10527580, 21055160]

約数ペア:

[(1, 21055160), (2, 10527580), (4, 5263790), (5, 4211032), (7, 3007880), (8, 2631895), (10, 2105516), (14, 1503940), (20, 1052758), (28, 751970), (29, 726040), (35, 601576), (40, 526379), (56, 375985), (58, 363020), (70, 300788), (116, 181510), (140, 150394), (145, 145208), (203, 103720), (232, 90755), (280, 75197), (290, 72604), (406, 51860), (580, 36302), (812, 25930), (1015, 20744), (1160, 18151), (1624, 12965), (2030, 10372), (2593, 8120), (4060, 5186)]