19699984

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{311}}^1$

素因数の和:463

約数の個数: 40

約数和(自身を含む): 39693888

約数和(自身を除く): 19993904

約数列:

[1, 2, 4, 8, 16, 37, 74, 107, 148, 214, 296, 311, 428, 592, 622, 856, 1244, 1712, 2488, 3959, 4976, 7918, 11507, 15836, 23014, 31672, 33277, 46028, 63344, 66554, 92056, 133108, 184112, 266216, 532432, 1231249, 2462498, 4924996, 9849992, 19699984]

約数ペア:

[(1, 19699984), (2, 9849992), (4, 4924996), (8, 2462498), (16, 1231249), (37, 532432), (74, 266216), (107, 184112), (148, 133108), (214, 92056), (296, 66554), (311, 63344), (428, 46028), (592, 33277), (622, 31672), (856, 23014), (1244, 15836), (1712, 11507), (2488, 7918), (3959, 4976)]