55971916

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2039

約数の個数: 72

約数和(自身を含む): 133929936

約数和(自身を除く): 77958020

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, 572, 637, 1001, 1078, 1274, 1997, 2002, 2156, 2548, 3994, 4004, 7007, 7988, 13979, 14014, 21967, 25961, 27958, 28028, 43934, 51922, 55916, 87868, 97853, 103844, 153769, 181727, 195706, 285571, 307538, 363454, 391412, 571142, 615076, 726908, 1076383, 1142284, 1272089, 1998997, 2152766, 2544178, 3997994, 4305532, 5088356, 7995988, 13992979, 27985958, 55971916]

約数ペア:

[(1, 55971916), (2, 27985958), (4, 13992979), (7, 7995988), (11, 5088356), (13, 4305532), (14, 3997994), (22, 2544178), (26, 2152766), (28, 1998997), (44, 1272089), (49, 1142284), (52, 1076383), (77, 726908), (91, 615076), (98, 571142), (143, 391412), (154, 363454), (182, 307538), (196, 285571), (286, 195706), (308, 181727), (364, 153769), (539, 103844), (572, 97853), (637, 87868), (1001, 55916), (1078, 51922), (1274, 43934), (1997, 28028), (2002, 27958), (2156, 25961), (2548, 21967), (3994, 14014), (4004, 13979), (7007, 7988)]