21639366

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 60825600

約数和(自身を除く): 39186234

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 23, 27, 38, 42, 46, 54, 57, 63, 69, 114, 126, 131, 133, 138, 161, 171, 189, 207, 262, 266, 322, 342, 378, 393, 399, 414, 437, 483, 513, 621, 786, 798, 874, 917, 966, 1026, 1179, 1197, 1242, 1311, 1449, 1834, 2358, 2394, 2489, 2622, 2751, 2898, 3013, 3059, 3537, 3591, 3933, 4347, 4978, 5502, 6026, 6118, 7074, 7182, 7467, 7866, 8253, 8694, 9039, 9177, 11799, 14934, 16506, 17423, 18078, 18354, 21091, 22401, 23598, 24759, 27117, 27531, 34846, 42182, 44802, 49518, 52269, 54234, 55062, 57247, 63273, 67203, 81351, 82593, 104538, 114494, 126546, 134406, 156807, 162702, 165186, 171741, 189819, 313614, 343482, 379638, 400729, 470421, 515223, 569457, 801458, 940842, 1030446, 1138914, 1202187, 1545669, 2404374, 3091338, 3606561, 7213122, 10819683, 21639366]

約数ペア:

[(1, 21639366), (2, 10819683), (3, 7213122), (6, 3606561), (7, 3091338), (9, 2404374), (14, 1545669), (18, 1202187), (19, 1138914), (21, 1030446), (23, 940842), (27, 801458), (38, 569457), (42, 515223), (46, 470421), (54, 400729), (57, 379638), (63, 343482), (69, 313614), (114, 189819), (126, 171741), (131, 165186), (133, 162702), (138, 156807), (161, 134406), (171, 126546), (189, 114494), (207, 104538), (262, 82593), (266, 81351), (322, 67203), (342, 63273), (378, 57247), (393, 55062), (399, 54234), (414, 52269), (437, 49518), (483, 44802), (513, 42182), (621, 34846), (786, 27531), (798, 27117), (874, 24759), (917, 23598), (966, 22401), (1026, 21091), (1179, 18354), (1197, 18078), (1242, 17423), (1311, 16506), (1449, 14934), (1834, 11799), (2358, 9177), (2394, 9039), (2489, 8694), (2622, 8253), (2751, 7866), (2898, 7467), (3013, 7182), (3059, 7074), (3537, 6118), (3591, 6026), (3933, 5502), (4347, 4978)]