681627969

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 1138871552

約数和(自身を除く): 457243583

約数列:

[1, 3, 9, 11, 31, 33, 61, 93, 99, 121, 183, 279, 331, 341, 363, 549, 671, 993, 1023, 1089, 1891, 2013, 2979, 3069, 3641, 3751, 5673, 6039, 7381, 10261, 10923, 11253, 17019, 20191, 20801, 22143, 30783, 32769, 33759, 40051, 60573, 62403, 66429, 92349, 112871, 120153, 181719, 187209, 222101, 228811, 338613, 360459, 625921, 666303, 686433, 1015839, 1241581, 1877763, 1998909, 2059299, 2443111, 3724743, 5633289, 6885131, 7329333, 11174229, 20655393, 21987999, 61966179, 75736441, 227209323, 681627969]

約数ペア:

[(1, 681627969), (3, 227209323), (9, 75736441), (11, 61966179), (31, 21987999), (33, 20655393), (61, 11174229), (93, 7329333), (99, 6885131), (121, 5633289), (183, 3724743), (279, 2443111), (331, 2059299), (341, 1998909), (363, 1877763), (549, 1241581), (671, 1015839), (993, 686433), (1023, 666303), (1089, 625921), (1891, 360459), (2013, 338613), (2979, 228811), (3069, 222101), (3641, 187209), (3751, 181719), (5673, 120153), (6039, 112871), (7381, 92349), (10261, 66429), (10923, 62403), (11253, 60573), (17019, 40051), (20191, 33759), (20801, 32769), (22143, 30783)]