12889336

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 25066800

約数和(自身を除く): 12177464

約数列:

[1, 2, 4, 8, 43, 86, 89, 172, 178, 344, 356, 421, 712, 842, 1684, 3368, 3827, 7654, 15308, 18103, 30616, 36206, 37469, 72412, 74938, 144824, 149876, 299752, 1611167, 3222334, 6444668, 12889336]

約数ペア:

[(1, 12889336), (2, 6444668), (4, 3222334), (8, 1611167), (43, 299752), (86, 149876), (89, 144824), (172, 74938), (178, 72412), (344, 37469), (356, 36206), (421, 30616), (712, 18103), (842, 15308), (1684, 7654), (3368, 3827)]