21496144

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2281}}^1$

素因数の和:2339

約数の個数: 40

約数和(自身を含む): 45274880

約数和(自身を除く): 23778736

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2281, 2356, 4562, 4712, 9124, 9424, 18248, 36496, 43339, 70711, 86678, 141422, 173356, 282844, 346712, 565688, 693424, 1131376, 1343509, 2687018, 5374036, 10748072, 21496144]

約数ペア:

[(1, 21496144), (2, 10748072), (4, 5374036), (8, 2687018), (16, 1343509), (19, 1131376), (31, 693424), (38, 565688), (62, 346712), (76, 282844), (124, 173356), (152, 141422), (248, 86678), (304, 70711), (496, 43339), (589, 36496), (1178, 18248), (2281, 9424), (2356, 9124), (4562, 4712)]