21184150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:170

約数の個数: 72

約数和(自身を含む): 44930160

約数和(自身を除く): 23746010

約数列:

[1, 2, 5, 10, 13, 23, 25, 26, 46, 50, 65, 109, 115, 130, 169, 218, 230, 299, 325, 338, 545, 575, 598, 650, 845, 1090, 1150, 1417, 1495, 1690, 2507, 2725, 2834, 2990, 3887, 4225, 5014, 5450, 7085, 7475, 7774, 8450, 12535, 14170, 14950, 18421, 19435, 25070, 32591, 35425, 36842, 38870, 62675, 65182, 70850, 92105, 97175, 125350, 162955, 184210, 194350, 325910, 423683, 460525, 814775, 847366, 921050, 1629550, 2118415, 4236830, 10592075, 21184150]

約数ペア:

[(1, 21184150), (2, 10592075), (5, 4236830), (10, 2118415), (13, 1629550), (23, 921050), (25, 847366), (26, 814775), (46, 460525), (50, 423683), (65, 325910), (109, 194350), (115, 184210), (130, 162955), (169, 125350), (218, 97175), (230, 92105), (299, 70850), (325, 65182), (338, 62675), (545, 38870), (575, 36842), (598, 35425), (650, 32591), (845, 25070), (1090, 19435), (1150, 18421), (1417, 14950), (1495, 14170), (1690, 12535), (2507, 8450), (2725, 7774), (2834, 7475), (2990, 7085), (3887, 5450), (4225, 5014)]