19877865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8231}}^1$

素因数の和:8269

約数の個数: 32

約数和(自身を含む): 37933056

約数和(自身を除く): 18055191

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8231, 24693, 41155, 57617, 123465, 172851, 189313, 288085, 567939, 864255, 946565, 1325191, 2839695, 3975573, 6625955, 19877865]

約数ペア:

[(1, 19877865), (3, 6625955), (5, 3975573), (7, 2839695), (15, 1325191), (21, 946565), (23, 864255), (35, 567939), (69, 288085), (105, 189313), (115, 172851), (161, 123465), (345, 57617), (483, 41155), (805, 24693), (2415, 8231)]