18521256

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:163

約数の個数: 128

約数和(自身を含む): 54432000

約数和(自身を除く): 35910744

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 23, 24, 26, 29, 39, 46, 52, 58, 69, 78, 87, 89, 92, 104, 116, 138, 156, 174, 178, 184, 232, 267, 276, 299, 312, 348, 356, 377, 534, 552, 598, 667, 696, 712, 754, 897, 1068, 1131, 1157, 1196, 1334, 1508, 1794, 2001, 2047, 2136, 2262, 2314, 2392, 2581, 2668, 3016, 3471, 3588, 4002, 4094, 4524, 4628, 5162, 5336, 6141, 6942, 7176, 7743, 8004, 8188, 8671, 9048, 9256, 10324, 12282, 13884, 15486, 16008, 16376, 17342, 20648, 24564, 26013, 26611, 27768, 30972, 33553, 34684, 49128, 52026, 53222, 59363, 61944, 67106, 69368, 79833, 100659, 104052, 106444, 118726, 134212, 159666, 178089, 201318, 208104, 212888, 237452, 268424, 319332, 356178, 402636, 474904, 638664, 712356, 771719, 805272, 1424712, 1543438, 2315157, 3086876, 4630314, 6173752, 9260628, 18521256]

約数ペア:

[(1, 18521256), (2, 9260628), (3, 6173752), (4, 4630314), (6, 3086876), (8, 2315157), (12, 1543438), (13, 1424712), (23, 805272), (24, 771719), (26, 712356), (29, 638664), (39, 474904), (46, 402636), (52, 356178), (58, 319332), (69, 268424), (78, 237452), (87, 212888), (89, 208104), (92, 201318), (104, 178089), (116, 159666), (138, 134212), (156, 118726), (174, 106444), (178, 104052), (184, 100659), (232, 79833), (267, 69368), (276, 67106), (299, 61944), (312, 59363), (348, 53222), (356, 52026), (377, 49128), (534, 34684), (552, 33553), (598, 30972), (667, 27768), (696, 26611), (712, 26013), (754, 24564), (897, 20648), (1068, 17342), (1131, 16376), (1157, 16008), (1196, 15486), (1334, 13884), (1508, 12282), (1794, 10324), (2001, 9256), (2047, 9048), (2136, 8671), (2262, 8188), (2314, 8004), (2392, 7743), (2581, 7176), (2668, 6942), (3016, 6141), (3471, 5336), (3588, 5162), (4002, 4628), (4094, 4524)]