21881880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{20261}}^1$

素因数の和:20281

約数の個数: 64

約数和(自身を含む): 72943200

約数和(自身を除く): 51061320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 20261, 40522, 60783, 81044, 101305, 121566, 162088, 182349, 202610, 243132, 303915, 364698, 405220, 486264, 547047, 607830, 729396, 810440, 911745, 1094094, 1215660, 1458792, 1823490, 2188188, 2431320, 2735235, 3646980, 4376376, 5470470, 7293960, 10940940, 21881880]

約数ペア:

[(1, 21881880), (2, 10940940), (3, 7293960), (4, 5470470), (5, 4376376), (6, 3646980), (8, 2735235), (9, 2431320), (10, 2188188), (12, 1823490), (15, 1458792), (18, 1215660), (20, 1094094), (24, 911745), (27, 810440), (30, 729396), (36, 607830), (40, 547047), (45, 486264), (54, 405220), (60, 364698), (72, 303915), (90, 243132), (108, 202610), (120, 182349), (135, 162088), (180, 121566), (216, 101305), (270, 81044), (360, 60783), (540, 40522), (1080, 20261)]