219408

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{653}}^1$

素因数の和:671

約数の個数: 40

約数和(自身を含む): 648768

約数和(自身を除く): 429360

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 653, 1306, 1959, 2612, 3918, 4571, 5224, 7836, 9142, 10448, 13713, 15672, 18284, 27426, 31344, 36568, 54852, 73136, 109704, 219408]

約数ペア:

[(1, 219408), (2, 109704), (3, 73136), (4, 54852), (6, 36568), (7, 31344), (8, 27426), (12, 18284), (14, 15672), (16, 13713), (21, 10448), (24, 9142), (28, 7836), (42, 5224), (48, 4571), (56, 3918), (84, 2612), (112, 1959), (168, 1306), (336, 653)]