21645787646

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{881}}^1\times {\mathrm{76303}}^1$

素因数の和:77216

約数の個数: 32

約数和(自身を含む): 38764873728

約数和(自身を除く): 17119086082

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 881, 1762, 6167, 12334, 20263, 40526, 76303, 141841, 152606, 283682, 534121, 1068242, 1754969, 3509938, 12284783, 24569566, 67222943, 134445886, 470560601, 941121202, 1546127689, 3092255378, 10822893823, 21645787646]

約数ペア:

[(1, 21645787646), (2, 10822893823), (7, 3092255378), (14, 1546127689), (23, 941121202), (46, 470560601), (161, 134445886), (322, 67222943), (881, 24569566), (1762, 12284783), (6167, 3509938), (12334, 1754969), (20263, 1068242), (40526, 534121), (76303, 283682), (141841, 152606)]