21291444

素因数分解:

$2^2\times 3^3\times {\mathrm{137}}^1\times {\mathrm{1439}}^1$

素因数の和:1589

約数の個数: 48

約数和(自身を含む): 55641600

約数和(自身を除く): 34350156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 137, 274, 411, 548, 822, 1233, 1439, 1644, 2466, 2878, 3699, 4317, 4932, 5756, 7398, 8634, 12951, 14796, 17268, 25902, 38853, 51804, 77706, 155412, 197143, 394286, 591429, 788572, 1182858, 1774287, 2365716, 3548574, 5322861, 7097148, 10645722, 21291444]

約数ペア:

[(1, 21291444), (2, 10645722), (3, 7097148), (4, 5322861), (6, 3548574), (9, 2365716), (12, 1774287), (18, 1182858), (27, 788572), (36, 591429), (54, 394286), (108, 197143), (137, 155412), (274, 77706), (411, 51804), (548, 38853), (822, 25902), (1233, 17268), (1439, 14796), (1644, 12951), (2466, 8634), (2878, 7398), (3699, 5756), (4317, 4932)]