21431145

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2593}}^1$

素因数の和:2649

約数の個数: 32

約数和(自身を含む): 37353600

約数和(自身を除く): 15922455

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 145, 285, 435, 551, 1653, 2593, 2755, 7779, 8265, 12965, 38895, 49267, 75197, 147801, 225591, 246335, 375985, 739005, 1127955, 1428743, 4286229, 7143715, 21431145]

約数ペア:

[(1, 21431145), (3, 7143715), (5, 4286229), (15, 1428743), (19, 1127955), (29, 739005), (57, 375985), (87, 246335), (95, 225591), (145, 147801), (285, 75197), (435, 49267), (551, 38895), (1653, 12965), (2593, 8265), (2755, 7779)]