19581692

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:462

約数の個数: 36

約数和(自身を含む): 37661400

約数和(自身を除く): 18079708

約数列:

[1, 2, 4, 13, 26, 52, 83, 166, 169, 332, 338, 349, 676, 698, 1079, 1396, 2158, 4316, 4537, 9074, 14027, 18148, 28054, 28967, 56108, 57934, 58981, 115868, 117962, 235924, 376571, 753142, 1506284, 4895423, 9790846, 19581692]

約数ペア:

[(1, 19581692), (2, 9790846), (4, 4895423), (13, 1506284), (26, 753142), (52, 376571), (83, 235924), (166, 117962), (169, 115868), (332, 58981), (338, 57934), (349, 56108), (676, 28967), (698, 28054), (1079, 18148), (1396, 14027), (2158, 9074), (4316, 4537)]