21252345

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{269}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 35769600

約数和(自身を除く): 14517255

約数列:

[1, 3, 5, 15, 23, 69, 115, 229, 269, 345, 687, 807, 1145, 1345, 3435, 4035, 5267, 6187, 15801, 18561, 26335, 30935, 61601, 79005, 92805, 184803, 308005, 924015, 1416823, 4250469, 7084115, 21252345]

約数ペア:

[(1, 21252345), (3, 7084115), (5, 4250469), (15, 1416823), (23, 924015), (69, 308005), (115, 184803), (229, 92805), (269, 79005), (345, 61601), (687, 30935), (807, 26335), (1145, 18561), (1345, 15801), (3435, 6187), (4035, 5267)]