207989199

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 349894272

約数和(自身を除く): 141905073

約数列:

[1, 3, 9, 11, 31, 33, 61, 93, 99, 101, 121, 183, 279, 303, 341, 363, 549, 671, 909, 1023, 1089, 1111, 1891, 2013, 3069, 3131, 3333, 3751, 5673, 6039, 6161, 7381, 9393, 9999, 11253, 12221, 17019, 18483, 20801, 22143, 28179, 33759, 34441, 36663, 55449, 62403, 66429, 67771, 103323, 109989, 187209, 190991, 203313, 228811, 309969, 378851, 572973, 609939, 686433, 745481, 1136553, 1718919, 2059299, 2100901, 2236443, 3409659, 6302703, 6709329, 18908109, 23109911, 69329733, 207989199]

約数ペア:

[(1, 207989199), (3, 69329733), (9, 23109911), (11, 18908109), (31, 6709329), (33, 6302703), (61, 3409659), (93, 2236443), (99, 2100901), (101, 2059299), (121, 1718919), (183, 1136553), (279, 745481), (303, 686433), (341, 609939), (363, 572973), (549, 378851), (671, 309969), (909, 228811), (1023, 203313), (1089, 190991), (1111, 187209), (1891, 109989), (2013, 103323), (3069, 67771), (3131, 66429), (3333, 62403), (3751, 55449), (5673, 36663), (6039, 34441), (6161, 33759), (7381, 28179), (9393, 22143), (9999, 20801), (11253, 18483), (12221, 17019)]