19972602

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1237}}^1$

素因数の和:1284

約数の個数: 64

約数和(自身を含む): 49916160

約数和(自身を除く): 29943558

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 27, 39, 46, 54, 69, 78, 117, 138, 207, 234, 299, 351, 414, 598, 621, 702, 897, 1237, 1242, 1794, 2474, 2691, 3711, 5382, 7422, 8073, 11133, 16081, 16146, 22266, 28451, 32162, 33399, 48243, 56902, 66798, 85353, 96486, 144729, 170706, 256059, 289458, 369863, 434187, 512118, 739726, 768177, 868374, 1109589, 1536354, 2219178, 3328767, 6657534, 9986301, 19972602]

約数ペア:

[(1, 19972602), (2, 9986301), (3, 6657534), (6, 3328767), (9, 2219178), (13, 1536354), (18, 1109589), (23, 868374), (26, 768177), (27, 739726), (39, 512118), (46, 434187), (54, 369863), (69, 289458), (78, 256059), (117, 170706), (138, 144729), (207, 96486), (234, 85353), (299, 66798), (351, 56902), (414, 48243), (598, 33399), (621, 32162), (702, 28451), (897, 22266), (1237, 16146), (1242, 16081), (1794, 11133), (2474, 8073), (2691, 7422), (3711, 5382)]