21810672

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:279

約数の個数: 120

約数和(自身を含む): 67162368

約数和(自身を除く): 45351696

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 61, 72, 78, 104, 117, 122, 144, 156, 183, 191, 208, 234, 244, 312, 366, 382, 468, 488, 549, 573, 624, 732, 764, 793, 936, 976, 1098, 1146, 1464, 1528, 1586, 1719, 1872, 2196, 2292, 2379, 2483, 2928, 3056, 3172, 3438, 4392, 4584, 4758, 4966, 6344, 6876, 7137, 7449, 8784, 9168, 9516, 9932, 11651, 12688, 13752, 14274, 14898, 19032, 19864, 22347, 23302, 27504, 28548, 29796, 34953, 38064, 39728, 44694, 46604, 57096, 59592, 69906, 89388, 93208, 104859, 114192, 119184, 139812, 151463, 178776, 186416, 209718, 279624, 302926, 357552, 419436, 454389, 559248, 605852, 838872, 908778, 1211704, 1363167, 1677744, 1817556, 2423408, 2726334, 3635112, 5452668, 7270224, 10905336, 21810672]

約数ペア:

[(1, 21810672), (2, 10905336), (3, 7270224), (4, 5452668), (6, 3635112), (8, 2726334), (9, 2423408), (12, 1817556), (13, 1677744), (16, 1363167), (18, 1211704), (24, 908778), (26, 838872), (36, 605852), (39, 559248), (48, 454389), (52, 419436), (61, 357552), (72, 302926), (78, 279624), (104, 209718), (117, 186416), (122, 178776), (144, 151463), (156, 139812), (183, 119184), (191, 114192), (208, 104859), (234, 93208), (244, 89388), (312, 69906), (366, 59592), (382, 57096), (468, 46604), (488, 44694), (549, 39728), (573, 38064), (624, 34953), (732, 29796), (764, 28548), (793, 27504), (936, 23302), (976, 22347), (1098, 19864), (1146, 19032), (1464, 14898), (1528, 14274), (1586, 13752), (1719, 12688), (1872, 11651), (2196, 9932), (2292, 9516), (2379, 9168), (2483, 8784), (2928, 7449), (3056, 7137), (3172, 6876), (3438, 6344), (4392, 4966), (4584, 4758)]