20943195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 42040320

約数和(自身を除く): 21097125

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 67, 91, 105, 195, 201, 229, 273, 335, 455, 469, 687, 871, 1005, 1145, 1365, 1407, 1603, 2345, 2613, 2977, 3435, 4355, 4809, 6097, 7035, 8015, 8931, 13065, 14885, 15343, 18291, 20839, 24045, 30485, 44655, 46029, 62517, 76715, 91455, 104195, 107401, 199459, 230145, 312585, 322203, 537005, 598377, 997295, 1396213, 1611015, 2991885, 4188639, 6981065, 20943195]

約数ペア:

[(1, 20943195), (3, 6981065), (5, 4188639), (7, 2991885), (13, 1611015), (15, 1396213), (21, 997295), (35, 598377), (39, 537005), (65, 322203), (67, 312585), (91, 230145), (105, 199459), (195, 107401), (201, 104195), (229, 91455), (273, 76715), (335, 62517), (455, 46029), (469, 44655), (687, 30485), (871, 24045), (1005, 20839), (1145, 18291), (1365, 15343), (1407, 14885), (1603, 13065), (2345, 8931), (2613, 8015), (2977, 7035), (3435, 6097), (4355, 4809)]