278398889727

素因数分解:

$3^1\times 7^1\times {\mathrm{367}}^1\times {\mathrm{3061}}^1\times {\mathrm{11801}}^1$

素因数の和:15239

約数の個数: 32

約数和(自身を含む): 425557837824

約数和(自身を除く): 147158948097

約数列:

[1, 3, 7, 21, 367, 1101, 2569, 3061, 7707, 9183, 11801, 21427, 35403, 64281, 82607, 247821, 1123387, 3370161, 4330967, 7863709, 12992901, 23591127, 30316769, 36122861, 90950307, 108368583, 252860027, 758580081, 13257089987, 39771269961, 92799629909, 278398889727]

約数ペア:

[(1, 278398889727), (3, 92799629909), (7, 39771269961), (21, 13257089987), (367, 758580081), (1101, 252860027), (2569, 108368583), (3061, 90950307), (7707, 36122861), (9183, 30316769), (11801, 23591127), (21427, 12992901), (35403, 7863709), (64281, 4330967), (82607, 3370161), (247821, 1123387)]