19736739

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 32947200

約数和(自身を除く): 13210461

約数列:

[1, 3, 9, 11, 31, 33, 59, 93, 99, 109, 177, 279, 327, 341, 531, 649, 981, 1023, 1199, 1829, 1947, 3069, 3379, 3597, 5487, 5841, 6431, 10137, 10791, 16461, 19293, 20119, 30411, 37169, 57879, 60357, 70741, 111507, 181071, 199361, 212223, 334521, 598083, 636669, 1794249, 2192971, 6578913, 19736739]

約数ペア:

[(1, 19736739), (3, 6578913), (9, 2192971), (11, 1794249), (31, 636669), (33, 598083), (59, 334521), (93, 212223), (99, 199361), (109, 181071), (177, 111507), (279, 70741), (327, 60357), (341, 57879), (531, 37169), (649, 30411), (981, 20119), (1023, 19293), (1199, 16461), (1829, 10791), (1947, 10137), (3069, 6431), (3379, 5841), (3597, 5487)]