16003988

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1$

素因数の和:613

約数の個数: 72

約数和(自身を含む): 38342304

約数和(自身を除く): 22338316

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 143, 154, 182, 196, 286, 308, 364, 539, 571, 572, 637, 1001, 1078, 1142, 1274, 2002, 2156, 2284, 2548, 3997, 4004, 6281, 7007, 7423, 7994, 12562, 14014, 14846, 15988, 25124, 27979, 28028, 29692, 43967, 51961, 55958, 81653, 87934, 103922, 111916, 163306, 175868, 207844, 307769, 326612, 363727, 571571, 615538, 727454, 1143142, 1231076, 1454908, 2286284, 4000997, 8001994, 16003988]

約数ペア:

[(1, 16003988), (2, 8001994), (4, 4000997), (7, 2286284), (11, 1454908), (13, 1231076), (14, 1143142), (22, 727454), (26, 615538), (28, 571571), (44, 363727), (49, 326612), (52, 307769), (77, 207844), (91, 175868), (98, 163306), (143, 111916), (154, 103922), (182, 87934), (196, 81653), (286, 55958), (308, 51961), (364, 43967), (539, 29692), (571, 28028), (572, 27979), (637, 25124), (1001, 15988), (1078, 14846), (1142, 14014), (1274, 12562), (2002, 7994), (2156, 7423), (2284, 7007), (2548, 6281), (3997, 4004)]