21685155

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{229}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 35769600

約数和(自身を除く): 14084445

約数列:

[1, 3, 5, 15, 59, 107, 177, 229, 295, 321, 535, 687, 885, 1145, 1605, 3435, 6313, 13511, 18939, 24503, 31565, 40533, 67555, 73509, 94695, 122515, 202665, 367545, 1445677, 4337031, 7228385, 21685155]

約数ペア:

[(1, 21685155), (3, 7228385), (5, 4337031), (15, 1445677), (59, 367545), (107, 202665), (177, 122515), (229, 94695), (295, 73509), (321, 67555), (535, 40533), (687, 31565), (885, 24503), (1145, 18939), (1605, 13511), (3435, 6313)]