21397176

素因数分解:

$2^3\times 3^3\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:170

約数の個数: 128

約数和(自身を含む): 63936000

約数和(自身を除く): 42538824

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 36, 46, 54, 59, 69, 72, 73, 92, 108, 118, 138, 146, 177, 184, 207, 216, 219, 236, 276, 292, 354, 414, 438, 472, 531, 552, 584, 621, 657, 708, 828, 876, 1062, 1242, 1314, 1357, 1416, 1593, 1656, 1679, 1752, 1971, 2124, 2484, 2628, 2714, 3186, 3358, 3942, 4071, 4248, 4307, 4968, 5037, 5256, 5428, 6372, 6716, 7884, 8142, 8614, 10074, 10856, 12213, 12744, 12921, 13432, 15111, 15768, 16284, 17228, 20148, 24426, 25842, 30222, 32568, 34456, 36639, 38763, 40296, 45333, 48852, 51684, 60444, 73278, 77526, 90666, 97704, 99061, 103368, 116289, 120888, 146556, 155052, 181332, 198122, 232578, 293112, 297183, 310104, 362664, 396244, 465156, 594366, 792488, 891549, 930312, 1188732, 1783098, 2377464, 2674647, 3566196, 5349294, 7132392, 10698588, 21397176]

約数ペア:

[(1, 21397176), (2, 10698588), (3, 7132392), (4, 5349294), (6, 3566196), (8, 2674647), (9, 2377464), (12, 1783098), (18, 1188732), (23, 930312), (24, 891549), (27, 792488), (36, 594366), (46, 465156), (54, 396244), (59, 362664), (69, 310104), (72, 297183), (73, 293112), (92, 232578), (108, 198122), (118, 181332), (138, 155052), (146, 146556), (177, 120888), (184, 116289), (207, 103368), (216, 99061), (219, 97704), (236, 90666), (276, 77526), (292, 73278), (354, 60444), (414, 51684), (438, 48852), (472, 45333), (531, 40296), (552, 38763), (584, 36639), (621, 34456), (657, 32568), (708, 30222), (828, 25842), (876, 24426), (1062, 20148), (1242, 17228), (1314, 16284), (1357, 15768), (1416, 15111), (1593, 13432), (1656, 12921), (1679, 12744), (1752, 12213), (1971, 10856), (2124, 10074), (2484, 8614), (2628, 8142), (2714, 7884), (3186, 6716), (3358, 6372), (3942, 5428), (4071, 5256), (4248, 5037), (4307, 4968)]