21978144

素因数分解:

$2^5\times 3^2\times {\mathrm{17}}^1\times {\mathrm{67}}^2$

素因数の和:167

約数の個数: 108

約数和(自身を含む): 67179294

約数和(自身を除く): 45201150

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 32, 34, 36, 48, 51, 67, 68, 72, 96, 102, 134, 136, 144, 153, 201, 204, 268, 272, 288, 306, 402, 408, 536, 544, 603, 612, 804, 816, 1072, 1139, 1206, 1224, 1608, 1632, 2144, 2278, 2412, 2448, 3216, 3417, 4489, 4556, 4824, 4896, 6432, 6834, 8978, 9112, 9648, 10251, 13467, 13668, 17956, 18224, 19296, 20502, 26934, 27336, 35912, 36448, 40401, 41004, 53868, 54672, 71824, 76313, 80802, 82008, 107736, 109344, 143648, 152626, 161604, 164016, 215472, 228939, 305252, 323208, 328032, 430944, 457878, 610504, 646416, 686817, 915756, 1221008, 1292832, 1373634, 1831512, 2442016, 2747268, 3663024, 5494536, 7326048, 10989072, 21978144]

約数ペア:

[(1, 21978144), (2, 10989072), (3, 7326048), (4, 5494536), (6, 3663024), (8, 2747268), (9, 2442016), (12, 1831512), (16, 1373634), (17, 1292832), (18, 1221008), (24, 915756), (32, 686817), (34, 646416), (36, 610504), (48, 457878), (51, 430944), (67, 328032), (68, 323208), (72, 305252), (96, 228939), (102, 215472), (134, 164016), (136, 161604), (144, 152626), (153, 143648), (201, 109344), (204, 107736), (268, 82008), (272, 80802), (288, 76313), (306, 71824), (402, 54672), (408, 53868), (536, 41004), (544, 40401), (603, 36448), (612, 35912), (804, 27336), (816, 26934), (1072, 20502), (1139, 19296), (1206, 18224), (1224, 17956), (1608, 13668), (1632, 13467), (2144, 10251), (2278, 9648), (2412, 9112), (2448, 8978), (3216, 6834), (3417, 6432), (4489, 4896), (4556, 4824)]