21515350

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1$

素因数の和:441

約数の個数: 48

約数和(自身を含む): 42666912

約数和(自身を除く): 21151562

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 53, 106, 115, 230, 265, 353, 530, 575, 706, 1150, 1219, 1325, 1765, 2438, 2650, 3530, 6095, 8119, 8825, 12190, 16238, 17650, 18709, 30475, 37418, 40595, 60950, 81190, 93545, 187090, 202975, 405950, 430307, 467725, 860614, 935450, 2151535, 4303070, 10757675, 21515350]

約数ペア:

[(1, 21515350), (2, 10757675), (5, 4303070), (10, 2151535), (23, 935450), (25, 860614), (46, 467725), (50, 430307), (53, 405950), (106, 202975), (115, 187090), (230, 93545), (265, 81190), (353, 60950), (530, 40595), (575, 37418), (706, 30475), (1150, 18709), (1219, 17650), (1325, 16238), (1765, 12190), (2438, 8825), (2650, 8119), (3530, 6095)]