19500228

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2141}}^1$

素因数の和:2185

約数の個数: 72

約数和(自身を含む): 56137536

約数和(自身を除く): 36637308

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 23, 33, 36, 44, 46, 66, 69, 92, 99, 132, 138, 198, 207, 253, 276, 396, 414, 506, 759, 828, 1012, 1518, 2141, 2277, 3036, 4282, 4554, 6423, 8564, 9108, 12846, 19269, 23551, 25692, 38538, 47102, 49243, 70653, 77076, 94204, 98486, 141306, 147729, 196972, 211959, 282612, 295458, 423918, 443187, 541673, 590916, 847836, 886374, 1083346, 1625019, 1772748, 2166692, 3250038, 4875057, 6500076, 9750114, 19500228]

約数ペア:

[(1, 19500228), (2, 9750114), (3, 6500076), (4, 4875057), (6, 3250038), (9, 2166692), (11, 1772748), (12, 1625019), (18, 1083346), (22, 886374), (23, 847836), (33, 590916), (36, 541673), (44, 443187), (46, 423918), (66, 295458), (69, 282612), (92, 211959), (99, 196972), (132, 147729), (138, 141306), (198, 98486), (207, 94204), (253, 77076), (276, 70653), (396, 49243), (414, 47102), (506, 38538), (759, 25692), (828, 23551), (1012, 19269), (1518, 12846), (2141, 9108), (2277, 8564), (3036, 6423), (4282, 4554)]