215540983

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{229}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 262310400

約数和(自身を除く): 46769417

約数列:

[1, 7, 43, 53, 59, 229, 301, 371, 413, 1603, 2279, 2537, 3127, 9847, 12137, 13511, 15953, 17759, 21889, 68929, 84959, 94577, 134461, 521891, 580973, 716083, 941227, 3653237, 4066811, 5012581, 30791569, 215540983]

約数ペア:

[(1, 215540983), (7, 30791569), (43, 5012581), (53, 4066811), (59, 3653237), (229, 941227), (301, 716083), (371, 580973), (413, 521891), (1603, 134461), (2279, 94577), (2537, 84959), (3127, 68929), (9847, 21889), (12137, 17759), (13511, 15953)]