17888728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{823}}^1$

素因数の和:872

約数の個数: 64

約数和(自身を含む): 41529600

約数和(自身を除く): 23640872

約数列:

[1, 2, 4, 8, 11, 13, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 209, 247, 286, 418, 494, 572, 823, 836, 988, 1144, 1646, 1672, 1976, 2717, 3292, 5434, 6584, 9053, 10699, 10868, 15637, 18106, 21398, 21736, 31274, 36212, 42796, 62548, 72424, 85592, 117689, 125096, 172007, 203281, 235378, 344014, 406562, 470756, 688028, 813124, 941512, 1376056, 1626248, 2236091, 4472182, 8944364, 17888728]

約数ペア:

[(1, 17888728), (2, 8944364), (4, 4472182), (8, 2236091), (11, 1626248), (13, 1376056), (19, 941512), (22, 813124), (26, 688028), (38, 470756), (44, 406562), (52, 344014), (76, 235378), (88, 203281), (104, 172007), (143, 125096), (152, 117689), (209, 85592), (247, 72424), (286, 62548), (418, 42796), (494, 36212), (572, 31274), (823, 21736), (836, 21398), (988, 18106), (1144, 15637), (1646, 10868), (1672, 10699), (1976, 9053), (2717, 6584), (3292, 5434)]