81905187

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{3371}}^1$

素因数の和:3483

約数の個数: 32

約数和(自身を含む): 135959040

約数和(自身を除く): 54053853

約数列:

[1, 3, 7, 13, 21, 39, 89, 91, 267, 273, 623, 1157, 1869, 3371, 3471, 8099, 10113, 23597, 24297, 43823, 70791, 131469, 300019, 306761, 900057, 920283, 2100133, 3900247, 6300399, 11700741, 27301729, 81905187]

約数ペア:

[(1, 81905187), (3, 27301729), (7, 11700741), (13, 6300399), (21, 3900247), (39, 2100133), (89, 920283), (91, 900057), (267, 306761), (273, 300019), (623, 131469), (1157, 70791), (1869, 43823), (3371, 24297), (3471, 23597), (8099, 10113)]