19963515

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 38610432

約数和(自身を除く): 18646917

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 41, 55, 65, 123, 143, 165, 195, 205, 227, 429, 451, 533, 615, 681, 715, 1135, 1353, 1599, 2145, 2255, 2497, 2665, 2951, 3405, 5863, 6765, 7491, 7995, 8853, 9307, 12485, 14755, 17589, 27921, 29315, 32461, 37455, 44265, 46535, 87945, 97383, 102377, 120991, 139605, 162305, 307131, 362973, 486915, 511885, 604955, 1330901, 1535655, 1814865, 3992703, 6654505, 19963515]

約数ペア:

[(1, 19963515), (3, 6654505), (5, 3992703), (11, 1814865), (13, 1535655), (15, 1330901), (33, 604955), (39, 511885), (41, 486915), (55, 362973), (65, 307131), (123, 162305), (143, 139605), (165, 120991), (195, 102377), (205, 97383), (227, 87945), (429, 46535), (451, 44265), (533, 37455), (615, 32461), (681, 29315), (715, 27921), (1135, 17589), (1353, 14755), (1599, 12485), (2145, 9307), (2255, 8853), (2497, 7995), (2665, 7491), (2951, 6765), (3405, 5863)]