21163450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:292

約数の個数: 96

約数和(自身を含む): 51425280

約数和(自身を除く): 30261830

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 25, 35, 46, 50, 55, 70, 77, 110, 115, 154, 161, 175, 230, 239, 253, 275, 322, 350, 385, 478, 506, 550, 575, 770, 805, 1150, 1195, 1265, 1610, 1673, 1771, 1925, 2390, 2530, 2629, 3346, 3542, 3850, 4025, 5258, 5497, 5975, 6325, 8050, 8365, 8855, 10994, 11950, 12650, 13145, 16730, 17710, 18403, 26290, 27485, 36806, 38479, 41825, 44275, 54970, 60467, 65725, 76958, 83650, 88550, 92015, 120934, 131450, 137425, 184030, 192395, 274850, 302335, 384790, 423269, 460075, 604670, 846538, 920150, 961975, 1511675, 1923950, 2116345, 3023350, 4232690, 10581725, 21163450]

約数ペア:

[(1, 21163450), (2, 10581725), (5, 4232690), (7, 3023350), (10, 2116345), (11, 1923950), (14, 1511675), (22, 961975), (23, 920150), (25, 846538), (35, 604670), (46, 460075), (50, 423269), (55, 384790), (70, 302335), (77, 274850), (110, 192395), (115, 184030), (154, 137425), (161, 131450), (175, 120934), (230, 92015), (239, 88550), (253, 83650), (275, 76958), (322, 65725), (350, 60467), (385, 54970), (478, 44275), (506, 41825), (550, 38479), (575, 36806), (770, 27485), (805, 26290), (1150, 18403), (1195, 17710), (1265, 16730), (1610, 13145), (1673, 12650), (1771, 11950), (1925, 10994), (2390, 8855), (2530, 8365), (2629, 8050), (3346, 6325), (3542, 5975), (3850, 5497), (4025, 5258)]