28856575881

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:759

約数の個数: 96

約数和(自身を含む): 49288512000

約数和(自身を除く): 20431936119

約数列:

[1, 3, 7, 9, 21, 61, 63, 97, 183, 199, 291, 389, 427, 549, 597, 679, 873, 1167, 1281, 1393, 1791, 2037, 2723, 3501, 3843, 4179, 5917, 6111, 8169, 12139, 12537, 17751, 19303, 23729, 24507, 36417, 37733, 41419, 53253, 57909, 71187, 77411, 84973, 109251, 113199, 124257, 135121, 166103, 173727, 213561, 232233, 254919, 264131, 339597, 372771, 405363, 498309, 541877, 696699, 764757, 792393, 1177483, 1216089, 1494927, 1625631, 2301713, 2377179, 3532449, 4722071, 4876893, 6905139, 7508867, 8242381, 10597347, 14166213, 16111991, 20715417, 22526601, 24727143, 33054497, 42498639, 48335973, 52562069, 67579803, 74181429, 99163491, 145007919, 157686207, 297490473, 458040887, 473058621, 1374122661, 3206286209, 4122367983, 9618858627, 28856575881]

約数ペア:

[(1, 28856575881), (3, 9618858627), (7, 4122367983), (9, 3206286209), (21, 1374122661), (61, 473058621), (63, 458040887), (97, 297490473), (183, 157686207), (199, 145007919), (291, 99163491), (389, 74181429), (427, 67579803), (549, 52562069), (597, 48335973), (679, 42498639), (873, 33054497), (1167, 24727143), (1281, 22526601), (1393, 20715417), (1791, 16111991), (2037, 14166213), (2723, 10597347), (3501, 8242381), (3843, 7508867), (4179, 6905139), (5917, 4876893), (6111, 4722071), (8169, 3532449), (12139, 2377179), (12537, 2301713), (17751, 1625631), (19303, 1494927), (23729, 1216089), (24507, 1177483), (36417, 792393), (37733, 764757), (41419, 696699), (53253, 541877), (57909, 498309), (71187, 405363), (77411, 372771), (84973, 339597), (109251, 264131), (113199, 254919), (124257, 232233), (135121, 213561), (166103, 173727)]