19993662

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1499}}^1$

素因数の和:1542

約数の個数: 64

約数和(自身を含む): 50400000

約数和(自身を除く): 30406338

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 114, 117, 171, 234, 247, 342, 351, 494, 513, 702, 741, 1026, 1482, 1499, 2223, 2998, 4446, 4497, 6669, 8994, 13338, 13491, 19487, 26982, 28481, 38974, 40473, 56962, 58461, 80946, 85443, 116922, 170886, 175383, 256329, 350766, 370253, 512658, 526149, 740506, 768987, 1052298, 1110759, 1537974, 2221518, 3332277, 6664554, 9996831, 19993662]

約数ペア:

[(1, 19993662), (2, 9996831), (3, 6664554), (6, 3332277), (9, 2221518), (13, 1537974), (18, 1110759), (19, 1052298), (26, 768987), (27, 740506), (38, 526149), (39, 512658), (54, 370253), (57, 350766), (78, 256329), (114, 175383), (117, 170886), (171, 116922), (234, 85443), (247, 80946), (342, 58461), (351, 56962), (494, 40473), (513, 38974), (702, 28481), (741, 26982), (1026, 19487), (1482, 13491), (1499, 13338), (2223, 8994), (2998, 6669), (4446, 4497)]