21716968

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1297}}^1$

素因数の和:1346

約数の個数: 64

約数和(自身を含む): 52335360

約数和(自身を除く): 30618392

約数列:

[1, 2, 4, 7, 8, 13, 14, 23, 26, 28, 46, 52, 56, 91, 92, 104, 161, 182, 184, 299, 322, 364, 598, 644, 728, 1196, 1288, 1297, 2093, 2392, 2594, 4186, 5188, 8372, 9079, 10376, 16744, 16861, 18158, 29831, 33722, 36316, 59662, 67444, 72632, 118027, 119324, 134888, 208817, 236054, 238648, 387803, 417634, 472108, 775606, 835268, 944216, 1551212, 1670536, 2714621, 3102424, 5429242, 10858484, 21716968]

約数ペア:

[(1, 21716968), (2, 10858484), (4, 5429242), (7, 3102424), (8, 2714621), (13, 1670536), (14, 1551212), (23, 944216), (26, 835268), (28, 775606), (46, 472108), (52, 417634), (56, 387803), (91, 238648), (92, 236054), (104, 208817), (161, 134888), (182, 119324), (184, 118027), (299, 72632), (322, 67444), (364, 59662), (598, 36316), (644, 33722), (728, 29831), (1196, 18158), (1288, 16861), (1297, 16744), (2093, 10376), (2392, 9079), (2594, 8372), (4186, 5188)]