18981768

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{733}}^1$

素因数の和:838

約数の個数: 64

約数和(自身を含む): 51791040

約数和(自身を除く): 32809272

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 83, 104, 156, 166, 249, 312, 332, 498, 664, 733, 996, 1079, 1466, 1992, 2158, 2199, 2932, 3237, 4316, 4398, 5864, 6474, 8632, 8796, 9529, 12948, 17592, 19058, 25896, 28587, 38116, 57174, 60839, 76232, 114348, 121678, 182517, 228696, 243356, 365034, 486712, 730068, 790907, 1460136, 1581814, 2372721, 3163628, 4745442, 6327256, 9490884, 18981768]

約数ペア:

[(1, 18981768), (2, 9490884), (3, 6327256), (4, 4745442), (6, 3163628), (8, 2372721), (12, 1581814), (13, 1460136), (24, 790907), (26, 730068), (39, 486712), (52, 365034), (78, 243356), (83, 228696), (104, 182517), (156, 121678), (166, 114348), (249, 76232), (312, 60839), (332, 57174), (498, 38116), (664, 28587), (733, 25896), (996, 19058), (1079, 17592), (1466, 12948), (1992, 9529), (2158, 8796), (2199, 8632), (2932, 6474), (3237, 5864), (4316, 4398)]