21550914

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 128

約数和(自身を含む): 61378560

約数和(自身を除く): 39827646

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 42, 54, 63, 66, 71, 73, 77, 99, 126, 142, 146, 154, 189, 198, 213, 219, 231, 297, 378, 426, 438, 462, 497, 511, 594, 639, 657, 693, 781, 803, 994, 1022, 1278, 1314, 1386, 1491, 1533, 1562, 1606, 1917, 1971, 2079, 2343, 2409, 2982, 3066, 3834, 3942, 4158, 4473, 4599, 4686, 4818, 5183, 5467, 5621, 7029, 7227, 8946, 9198, 10366, 10934, 11242, 13419, 13797, 14058, 14454, 15549, 16401, 16863, 21087, 21681, 26838, 27594, 31098, 32802, 33726, 36281, 42174, 43362, 46647, 49203, 50589, 57013, 72562, 93294, 98406, 101178, 108843, 114026, 139941, 147609, 151767, 171039, 217686, 279882, 295218, 303534, 326529, 342078, 399091, 513117, 653058, 798182, 979587, 1026234, 1197273, 1539351, 1959174, 2394546, 3078702, 3591819, 7183638, 10775457, 21550914]

約数ペア:

[(1, 21550914), (2, 10775457), (3, 7183638), (6, 3591819), (7, 3078702), (9, 2394546), (11, 1959174), (14, 1539351), (18, 1197273), (21, 1026234), (22, 979587), (27, 798182), (33, 653058), (42, 513117), (54, 399091), (63, 342078), (66, 326529), (71, 303534), (73, 295218), (77, 279882), (99, 217686), (126, 171039), (142, 151767), (146, 147609), (154, 139941), (189, 114026), (198, 108843), (213, 101178), (219, 98406), (231, 93294), (297, 72562), (378, 57013), (426, 50589), (438, 49203), (462, 46647), (497, 43362), (511, 42174), (594, 36281), (639, 33726), (657, 32802), (693, 31098), (781, 27594), (803, 26838), (994, 21681), (1022, 21087), (1278, 16863), (1314, 16401), (1386, 15549), (1491, 14454), (1533, 14058), (1562, 13797), (1606, 13419), (1917, 11242), (1971, 10934), (2079, 10366), (2343, 9198), (2409, 8946), (2982, 7227), (3066, 7029), (3834, 5621), (3942, 5467), (4158, 5183), (4473, 4818), (4599, 4686)]