21099650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{227}}^1$

素因数の和:276

約数の個数: 72

約数和(自身を含む): 46563984

約数和(自身を除く): 25464334

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 169, 227, 275, 286, 325, 338, 454, 550, 650, 715, 845, 1135, 1430, 1690, 1859, 2270, 2497, 2951, 3575, 3718, 4225, 4994, 5675, 5902, 7150, 8450, 9295, 11350, 12485, 14755, 18590, 24970, 29510, 32461, 38363, 46475, 62425, 64922, 73775, 76726, 92950, 124850, 147550, 162305, 191815, 324610, 383630, 421993, 811525, 843986, 959075, 1623050, 1918150, 2109965, 4219930, 10549825, 21099650]

約数ペア:

[(1, 21099650), (2, 10549825), (5, 4219930), (10, 2109965), (11, 1918150), (13, 1623050), (22, 959075), (25, 843986), (26, 811525), (50, 421993), (55, 383630), (65, 324610), (110, 191815), (130, 162305), (143, 147550), (169, 124850), (227, 92950), (275, 76726), (286, 73775), (325, 64922), (338, 62425), (454, 46475), (550, 38363), (650, 32461), (715, 29510), (845, 24970), (1135, 18590), (1430, 14755), (1690, 12485), (1859, 11350), (2270, 9295), (2497, 8450), (2951, 7150), (3575, 5902), (3718, 5675), (4225, 4994)]