21226135

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{541}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 31219200

約数和(自身を除く): 9993065

約数列:

[1, 5, 7, 19, 35, 59, 95, 133, 295, 413, 541, 665, 1121, 2065, 2705, 3787, 5605, 7847, 10279, 18935, 31919, 39235, 51395, 71953, 159595, 223433, 359765, 606461, 1117165, 3032305, 4245227, 21226135]

約数ペア:

[(1, 21226135), (5, 4245227), (7, 3032305), (19, 1117165), (35, 606461), (59, 359765), (95, 223433), (133, 159595), (295, 71953), (413, 51395), (541, 39235), (665, 31919), (1121, 18935), (2065, 10279), (2705, 7847), (3787, 5605)]