21381648

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{26203}}^1$

素因数の和:26231

約数の個数: 40

約数和(自身を含む): 58487328

約数和(自身を除く): 37105680

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 816, 26203, 52406, 78609, 104812, 157218, 209624, 314436, 419248, 445451, 628872, 890902, 1257744, 1336353, 1781804, 2672706, 3563608, 5345412, 7127216, 10690824, 21381648]

約数ペア:

[(1, 21381648), (2, 10690824), (3, 7127216), (4, 5345412), (6, 3563608), (8, 2672706), (12, 1781804), (16, 1336353), (17, 1257744), (24, 890902), (34, 628872), (48, 445451), (51, 419248), (68, 314436), (102, 209624), (136, 157218), (204, 104812), (272, 78609), (408, 52406), (816, 26203)]