21092325

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 37604736

約数和(自身を除く): 16512411

約数列:

[1, 3, 5, 15, 17, 25, 51, 71, 75, 85, 213, 233, 255, 355, 425, 699, 1065, 1165, 1207, 1275, 1775, 3495, 3621, 3961, 5325, 5825, 6035, 11883, 16543, 17475, 18105, 19805, 30175, 49629, 59415, 82715, 90525, 99025, 248145, 281231, 297075, 413575, 843693, 1240725, 1406155, 4218465, 7030775, 21092325]

約数ペア:

[(1, 21092325), (3, 7030775), (5, 4218465), (15, 1406155), (17, 1240725), (25, 843693), (51, 413575), (71, 297075), (75, 281231), (85, 248145), (213, 99025), (233, 90525), (255, 82715), (355, 59415), (425, 49629), (699, 30175), (1065, 19805), (1165, 18105), (1207, 17475), (1275, 16543), (1775, 11883), (3495, 6035), (3621, 5825), (3961, 5325)]