21912072

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 68812800

約数和(自身を除く): 46900728

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 79, 84, 91, 104, 127, 156, 158, 168, 182, 237, 254, 273, 312, 316, 364, 381, 474, 508, 546, 553, 632, 728, 762, 889, 948, 1016, 1027, 1092, 1106, 1524, 1651, 1659, 1778, 1896, 2054, 2184, 2212, 2667, 3048, 3081, 3302, 3318, 3556, 4108, 4424, 4953, 5334, 6162, 6604, 6636, 7112, 7189, 8216, 9906, 10033, 10668, 11557, 12324, 13208, 13272, 14378, 19812, 20066, 21336, 21567, 23114, 24648, 28756, 30099, 34671, 39624, 40132, 43134, 46228, 57512, 60198, 69342, 70231, 80264, 86268, 92456, 120396, 130429, 138684, 140462, 172536, 210693, 240792, 260858, 277368, 280924, 391287, 421386, 521716, 561848, 782574, 842772, 913003, 1043432, 1565148, 1685544, 1826006, 2739009, 3130296, 3652012, 5478018, 7304024, 10956036, 21912072]

約数ペア:

[(1, 21912072), (2, 10956036), (3, 7304024), (4, 5478018), (6, 3652012), (7, 3130296), (8, 2739009), (12, 1826006), (13, 1685544), (14, 1565148), (21, 1043432), (24, 913003), (26, 842772), (28, 782574), (39, 561848), (42, 521716), (52, 421386), (56, 391287), (78, 280924), (79, 277368), (84, 260858), (91, 240792), (104, 210693), (127, 172536), (156, 140462), (158, 138684), (168, 130429), (182, 120396), (237, 92456), (254, 86268), (273, 80264), (312, 70231), (316, 69342), (364, 60198), (381, 57512), (474, 46228), (508, 43134), (546, 40132), (553, 39624), (632, 34671), (728, 30099), (762, 28756), (889, 24648), (948, 23114), (1016, 21567), (1027, 21336), (1092, 20066), (1106, 19812), (1524, 14378), (1651, 13272), (1659, 13208), (1778, 12324), (1896, 11557), (2054, 10668), (2184, 10033), (2212, 9906), (2667, 8216), (3048, 7189), (3081, 7112), (3302, 6636), (3318, 6604), (3556, 6162), (4108, 5334), (4424, 4953)]