18540808

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{853}}^1$

素因数の和:902

約数の個数: 64

約数和(自身を含む): 43041600

約数和(自身を除く): 24500792

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, 836, 853, 988, 1144, 1672, 1706, 1976, 2717, 3412, 5434, 6824, 9383, 10868, 11089, 16207, 18766, 21736, 22178, 32414, 37532, 44356, 64828, 75064, 88712, 121979, 129656, 178277, 210691, 243958, 356554, 421382, 487916, 713108, 842764, 975832, 1426216, 1685528, 2317601, 4635202, 9270404, 18540808]

約数ペア:

[(1, 18540808), (2, 9270404), (4, 4635202), (8, 2317601), (11, 1685528), (13, 1426216), (19, 975832), (22, 842764), (26, 713108), (38, 487916), (44, 421382), (52, 356554), (76, 243958), (88, 210691), (104, 178277), (143, 129656), (152, 121979), (209, 88712), (247, 75064), (286, 64828), (418, 44356), (494, 37532), (572, 32414), (836, 22178), (853, 21736), (988, 18766), (1144, 16207), (1672, 11089), (1706, 10868), (1976, 9383), (2717, 6824), (3412, 5434)]