20773844

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 47190528

約数和(自身を除く): 26416684

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 91, 98, 124, 182, 196, 217, 263, 364, 403, 434, 526, 637, 806, 868, 1052, 1274, 1519, 1612, 1841, 2548, 2821, 3038, 3419, 3682, 5642, 6076, 6838, 7364, 8153, 11284, 12887, 13676, 16306, 19747, 23933, 25774, 32612, 39494, 47866, 51548, 57071, 78988, 95732, 105989, 114142, 167531, 211978, 228284, 335062, 399497, 423956, 670124, 741923, 798994, 1483846, 1597988, 2967692, 5193461, 10386922, 20773844]

約数ペア:

[(1, 20773844), (2, 10386922), (4, 5193461), (7, 2967692), (13, 1597988), (14, 1483846), (26, 798994), (28, 741923), (31, 670124), (49, 423956), (52, 399497), (62, 335062), (91, 228284), (98, 211978), (124, 167531), (182, 114142), (196, 105989), (217, 95732), (263, 78988), (364, 57071), (403, 51548), (434, 47866), (526, 39494), (637, 32612), (806, 25774), (868, 23933), (1052, 19747), (1274, 16306), (1519, 13676), (1612, 12887), (1841, 11284), (2548, 8153), (2821, 7364), (3038, 6838), (3419, 6076), (3682, 5642)]