20892872

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2609}}^1$

素因数の和:2646

約数の個数: 64

約数和(自身を含む): 52617600

約数和(自身を除く): 31724728

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2609, 4004, 5218, 8008, 10436, 18263, 20872, 28699, 33917, 36526, 57398, 67834, 73052, 114796, 135668, 146104, 200893, 229592, 237419, 271336, 373087, 401786, 474838, 746174, 803572, 949676, 1492348, 1607144, 1899352, 2611609, 2984696, 5223218, 10446436, 20892872]

約数ペア:

[(1, 20892872), (2, 10446436), (4, 5223218), (7, 2984696), (8, 2611609), (11, 1899352), (13, 1607144), (14, 1492348), (22, 949676), (26, 803572), (28, 746174), (44, 474838), (52, 401786), (56, 373087), (77, 271336), (88, 237419), (91, 229592), (104, 200893), (143, 146104), (154, 135668), (182, 114796), (286, 73052), (308, 67834), (364, 57398), (572, 36526), (616, 33917), (728, 28699), (1001, 20872), (1144, 18263), (2002, 10436), (2609, 8008), (4004, 5218)]