19797525

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:467

約数の個数: 72

約数和(自身を含む): 40815840

約数和(自身を除く): 21018315

約数列:

[1, 3, 5, 9, 11, 15, 19, 25, 33, 45, 55, 57, 75, 95, 99, 165, 171, 209, 225, 275, 285, 421, 475, 495, 627, 825, 855, 1045, 1263, 1425, 1881, 2105, 2475, 3135, 3789, 4275, 4631, 5225, 6315, 7999, 9405, 10525, 13893, 15675, 18945, 23155, 23997, 31575, 39995, 41679, 47025, 69465, 71991, 87989, 94725, 115775, 119985, 199975, 208395, 263967, 347325, 359955, 439945, 599925, 791901, 1041975, 1319835, 1799775, 2199725, 3959505, 6599175, 19797525]

約数ペア:

[(1, 19797525), (3, 6599175), (5, 3959505), (9, 2199725), (11, 1799775), (15, 1319835), (19, 1041975), (25, 791901), (33, 599925), (45, 439945), (55, 359955), (57, 347325), (75, 263967), (95, 208395), (99, 199975), (165, 119985), (171, 115775), (209, 94725), (225, 87989), (275, 71991), (285, 69465), (421, 47025), (475, 41679), (495, 39995), (627, 31575), (825, 23997), (855, 23155), (1045, 18945), (1263, 15675), (1425, 13893), (1881, 10525), (2105, 9405), (2475, 7999), (3135, 6315), (3789, 5225), (4275, 4631)]