21676340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:345

約数の個数: 96

約数和(自身を含む): 56851200

約数和(自身を除く): 35174860

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 29, 35, 38, 58, 70, 76, 95, 116, 133, 140, 145, 190, 203, 266, 281, 290, 380, 406, 532, 551, 562, 580, 665, 812, 1015, 1102, 1124, 1330, 1405, 1967, 2030, 2204, 2660, 2755, 2810, 3857, 3934, 4060, 5339, 5510, 5620, 7714, 7868, 8149, 9835, 10678, 11020, 15428, 16298, 19285, 19670, 21356, 26695, 32596, 37373, 38570, 39340, 40745, 53390, 57043, 74746, 77140, 81490, 106780, 114086, 149492, 154831, 162980, 186865, 228172, 285215, 309662, 373730, 570430, 619324, 747460, 774155, 1083817, 1140860, 1548310, 2167634, 3096620, 4335268, 5419085, 10838170, 21676340]

約数ペア:

[(1, 21676340), (2, 10838170), (4, 5419085), (5, 4335268), (7, 3096620), (10, 2167634), (14, 1548310), (19, 1140860), (20, 1083817), (28, 774155), (29, 747460), (35, 619324), (38, 570430), (58, 373730), (70, 309662), (76, 285215), (95, 228172), (116, 186865), (133, 162980), (140, 154831), (145, 149492), (190, 114086), (203, 106780), (266, 81490), (281, 77140), (290, 74746), (380, 57043), (406, 53390), (532, 40745), (551, 39340), (562, 38570), (580, 37373), (665, 32596), (812, 26695), (1015, 21356), (1102, 19670), (1124, 19285), (1330, 16298), (1405, 15428), (1967, 11020), (2030, 10678), (2204, 9835), (2660, 8149), (2755, 7868), (2810, 7714), (3857, 5620), (3934, 5510), (4060, 5339)]