20171242

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:323

約数の個数: 48

約数和(自身を含む): 38610432

約数和(自身を除く): 18439190

約数列:

[1, 2, 7, 13, 14, 26, 49, 71, 91, 98, 142, 182, 223, 446, 497, 637, 923, 994, 1274, 1561, 1846, 2899, 3122, 3479, 5798, 6461, 6958, 10927, 12922, 15833, 20293, 21854, 31666, 40586, 45227, 90454, 110831, 142051, 205829, 221662, 284102, 411658, 775817, 1440803, 1551634, 2881606, 10085621, 20171242]

約数ペア:

[(1, 20171242), (2, 10085621), (7, 2881606), (13, 1551634), (14, 1440803), (26, 775817), (49, 411658), (71, 284102), (91, 221662), (98, 205829), (142, 142051), (182, 110831), (223, 90454), (446, 45227), (497, 40586), (637, 31666), (923, 21854), (994, 20293), (1274, 15833), (1561, 12922), (1846, 10927), (2899, 6958), (3122, 6461), (3479, 5798)]