20197996

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{7927}}^1$

素因数の和:7958

約数の個数: 36

約数和(自身を含む): 44285808

約数和(自身を除く): 24087812

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 7927, 15854, 31708, 55489, 103051, 110978, 206102, 221956, 388423, 412204, 721357, 776846, 1442714, 1553692, 2885428, 5049499, 10098998, 20197996]

約数ペア:

[(1, 20197996), (2, 10098998), (4, 5049499), (7, 2885428), (13, 1553692), (14, 1442714), (26, 776846), (28, 721357), (49, 412204), (52, 388423), (91, 221956), (98, 206102), (182, 110978), (196, 103051), (364, 55489), (637, 31708), (1274, 15854), (2548, 7927)]