21613293

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 14029587

約数列:

[1, 3, 9, 13, 31, 39, 59, 93, 101, 117, 177, 279, 303, 403, 531, 767, 909, 1209, 1313, 1829, 2301, 3131, 3627, 3939, 5487, 5959, 6903, 9393, 11817, 16461, 17877, 23777, 28179, 40703, 53631, 71331, 77467, 122109, 184729, 213993, 232401, 366327, 554187, 697203, 1662561, 2401477, 7204431, 21613293]

約数ペア:

[(1, 21613293), (3, 7204431), (9, 2401477), (13, 1662561), (31, 697203), (39, 554187), (59, 366327), (93, 232401), (101, 213993), (117, 184729), (177, 122109), (279, 77467), (303, 71331), (403, 53631), (531, 40703), (767, 28179), (909, 23777), (1209, 17877), (1313, 16461), (1829, 11817), (2301, 9393), (3131, 6903), (3627, 5959), (3939, 5487)]