81888499

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{251}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 108380160

約数和(自身を除く): 26491661

約数列:

[1, 7, 11, 19, 77, 133, 209, 223, 251, 1463, 1561, 1757, 2453, 2761, 4237, 4769, 17171, 19327, 29659, 33383, 46607, 52459, 55973, 326249, 367213, 391811, 615703, 1063487, 4309921, 7444409, 11698357, 81888499]

約数ペア:

[(1, 81888499), (7, 11698357), (11, 7444409), (19, 4309921), (77, 1063487), (133, 615703), (209, 391811), (223, 367213), (251, 326249), (1463, 55973), (1561, 52459), (1757, 46607), (2453, 33383), (2761, 29659), (4237, 19327), (4769, 17171)]