21000368648

素因数分解:

$2^3\times 7^2\times {\mathrm{281}}^1\times {\mathrm{190649}}^1$

素因数の和:190950

約数の個数: 48

約数和(自身を含む): 45967621500

約数和(自身を除く): 24967252852

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 281, 392, 562, 1124, 1967, 2248, 3934, 7868, 13769, 15736, 27538, 55076, 110152, 190649, 381298, 762596, 1334543, 1525192, 2669086, 5338172, 9341801, 10676344, 18683602, 37367204, 53572369, 74734408, 107144738, 214289476, 375006583, 428578952, 750013166, 1500026332, 2625046081, 3000052664, 5250092162, 10500184324, 21000368648]

約数ペア:

[(1, 21000368648), (2, 10500184324), (4, 5250092162), (7, 3000052664), (8, 2625046081), (14, 1500026332), (28, 750013166), (49, 428578952), (56, 375006583), (98, 214289476), (196, 107144738), (281, 74734408), (392, 53572369), (562, 37367204), (1124, 18683602), (1967, 10676344), (2248, 9341801), (3934, 5338172), (7868, 2669086), (13769, 1525192), (15736, 1334543), (27538, 762596), (55076, 381298), (110152, 190649)]