21148492065

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3605881}}^1$

素因数の和:3605929

約数の個数: 32

約数和(自身を含む): 37385784576

約数和(自身を除く): 16237292511

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 5865, 3605881, 10817643, 18029405, 54088215, 61299977, 82935263, 183899931, 248805789, 306499885, 414676315, 919499655, 1244028945, 1409899471, 4229698413, 7049497355, 21148492065]

約数ペア:

[(1, 21148492065), (3, 7049497355), (5, 4229698413), (15, 1409899471), (17, 1244028945), (23, 919499655), (51, 414676315), (69, 306499885), (85, 248805789), (115, 183899931), (255, 82935263), (345, 61299977), (391, 54088215), (1173, 18029405), (1955, 10817643), (5865, 3605881)]