21921552

素因数分解:

$2^4\times 3^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:181

約数の個数: 120

約数和(自身を含む): 64995840

約数和(自身を除く): 43074288

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 41, 47, 48, 72, 79, 82, 94, 123, 141, 144, 158, 164, 188, 237, 246, 282, 316, 328, 369, 376, 423, 474, 492, 564, 632, 656, 711, 738, 752, 846, 948, 984, 1128, 1264, 1422, 1476, 1692, 1896, 1927, 1968, 2256, 2844, 2952, 3239, 3384, 3713, 3792, 3854, 5688, 5781, 5904, 6478, 6768, 7426, 7708, 9717, 11139, 11376, 11562, 12956, 14852, 15416, 17343, 19434, 22278, 23124, 25912, 29151, 29704, 30832, 33417, 34686, 38868, 44556, 46248, 51824, 58302, 59408, 66834, 69372, 77736, 89112, 92496, 116604, 133668, 138744, 152233, 155472, 178224, 233208, 267336, 277488, 304466, 456699, 466416, 534672, 608932, 913398, 1217864, 1370097, 1826796, 2435728, 2740194, 3653592, 5480388, 7307184, 10960776, 21921552]

約数ペア:

[(1, 21921552), (2, 10960776), (3, 7307184), (4, 5480388), (6, 3653592), (8, 2740194), (9, 2435728), (12, 1826796), (16, 1370097), (18, 1217864), (24, 913398), (36, 608932), (41, 534672), (47, 466416), (48, 456699), (72, 304466), (79, 277488), (82, 267336), (94, 233208), (123, 178224), (141, 155472), (144, 152233), (158, 138744), (164, 133668), (188, 116604), (237, 92496), (246, 89112), (282, 77736), (316, 69372), (328, 66834), (369, 59408), (376, 58302), (423, 51824), (474, 46248), (492, 44556), (564, 38868), (632, 34686), (656, 33417), (711, 30832), (738, 29704), (752, 29151), (846, 25912), (948, 23124), (984, 22278), (1128, 19434), (1264, 17343), (1422, 15416), (1476, 14852), (1692, 12956), (1896, 11562), (1927, 11376), (1968, 11139), (2256, 9717), (2844, 7708), (2952, 7426), (3239, 6768), (3384, 6478), (3713, 5904), (3792, 5781), (3854, 5688)]