20723136

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{907}}^1$

素因数の和:946

約数の個数: 112

約数和(自身を含む): 66422016

約数和(自身を除く): 45698880

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 32, 34, 42, 48, 51, 56, 64, 68, 84, 96, 102, 112, 119, 136, 168, 192, 204, 224, 238, 272, 336, 357, 408, 448, 476, 544, 672, 714, 816, 907, 952, 1088, 1344, 1428, 1632, 1814, 1904, 2721, 2856, 3264, 3628, 3808, 5442, 5712, 6349, 7256, 7616, 10884, 11424, 12698, 14512, 15419, 19047, 21768, 22848, 25396, 29024, 30838, 38094, 43536, 46257, 50792, 58048, 61676, 76188, 87072, 92514, 101584, 107933, 123352, 152376, 174144, 185028, 203168, 215866, 246704, 304752, 323799, 370056, 406336, 431732, 493408, 609504, 647598, 740112, 863464, 986816, 1219008, 1295196, 1480224, 1726928, 2590392, 2960448, 3453856, 5180784, 6907712, 10361568, 20723136]

約数ペア:

[(1, 20723136), (2, 10361568), (3, 6907712), (4, 5180784), (6, 3453856), (7, 2960448), (8, 2590392), (12, 1726928), (14, 1480224), (16, 1295196), (17, 1219008), (21, 986816), (24, 863464), (28, 740112), (32, 647598), (34, 609504), (42, 493408), (48, 431732), (51, 406336), (56, 370056), (64, 323799), (68, 304752), (84, 246704), (96, 215866), (102, 203168), (112, 185028), (119, 174144), (136, 152376), (168, 123352), (192, 107933), (204, 101584), (224, 92514), (238, 87072), (272, 76188), (336, 61676), (357, 58048), (408, 50792), (448, 46257), (476, 43536), (544, 38094), (672, 30838), (714, 29024), (816, 25396), (907, 22848), (952, 21768), (1088, 19047), (1344, 15419), (1428, 14512), (1632, 12698), (1814, 11424), (1904, 10884), (2721, 7616), (2856, 7256), (3264, 6349), (3628, 5712), (3808, 5442)]