21374748

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 56609280

約数和(自身を除く): 35234532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 107, 124, 179, 186, 214, 279, 321, 358, 372, 428, 537, 558, 642, 716, 963, 1074, 1116, 1284, 1611, 1926, 2148, 3222, 3317, 3852, 5549, 6444, 6634, 9951, 11098, 13268, 16647, 19153, 19902, 22196, 29853, 33294, 38306, 39804, 49941, 57459, 59706, 66588, 76612, 99882, 114918, 119412, 172377, 199764, 229836, 344754, 593743, 689508, 1187486, 1781229, 2374972, 3562458, 5343687, 7124916, 10687374, 21374748]

約数ペア:

[(1, 21374748), (2, 10687374), (3, 7124916), (4, 5343687), (6, 3562458), (9, 2374972), (12, 1781229), (18, 1187486), (31, 689508), (36, 593743), (62, 344754), (93, 229836), (107, 199764), (124, 172377), (179, 119412), (186, 114918), (214, 99882), (279, 76612), (321, 66588), (358, 59706), (372, 57459), (428, 49941), (537, 39804), (558, 38306), (642, 33294), (716, 29853), (963, 22196), (1074, 19902), (1116, 19153), (1284, 16647), (1611, 13268), (1926, 11098), (2148, 9951), (3222, 6634), (3317, 6444), (3852, 5549)]