21594700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 50309280

約数和(自身を除く): 28714580

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 41, 46, 50, 82, 92, 100, 115, 164, 205, 229, 230, 410, 458, 460, 575, 820, 916, 943, 1025, 1145, 1150, 1886, 2050, 2290, 2300, 3772, 4100, 4580, 4715, 5267, 5725, 9389, 9430, 10534, 11450, 18778, 18860, 21068, 22900, 23575, 26335, 37556, 46945, 47150, 52670, 93890, 94300, 105340, 131675, 187780, 215947, 234725, 263350, 431894, 469450, 526700, 863788, 938900, 1079735, 2159470, 4318940, 5398675, 10797350, 21594700]

約数ペア:

[(1, 21594700), (2, 10797350), (4, 5398675), (5, 4318940), (10, 2159470), (20, 1079735), (23, 938900), (25, 863788), (41, 526700), (46, 469450), (50, 431894), (82, 263350), (92, 234725), (100, 215947), (115, 187780), (164, 131675), (205, 105340), (229, 94300), (230, 93890), (410, 52670), (458, 47150), (460, 46945), (575, 37556), (820, 26335), (916, 23575), (943, 22900), (1025, 21068), (1145, 18860), (1150, 18778), (1886, 11450), (2050, 10534), (2290, 9430), (2300, 9389), (3772, 5725), (4100, 5267), (4580, 4715)]