21398432

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:142

約数の個数: 96

約数和(自身を含む): 49641984

約数和(自身を除く): 28243552

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 37, 44, 53, 62, 74, 88, 106, 124, 148, 176, 212, 248, 296, 341, 352, 407, 424, 496, 583, 592, 682, 814, 848, 992, 1147, 1166, 1184, 1364, 1628, 1643, 1696, 1961, 2294, 2332, 2728, 3256, 3286, 3922, 4588, 4664, 5456, 6512, 6572, 7844, 9176, 9328, 10912, 12617, 13024, 13144, 15688, 18073, 18352, 18656, 21571, 25234, 26288, 31376, 36146, 36704, 43142, 50468, 52576, 60791, 62752, 72292, 86284, 100936, 121582, 144584, 172568, 201872, 243164, 289168, 345136, 403744, 486328, 578336, 668701, 690272, 972656, 1337402, 1945312, 2674804, 5349608, 10699216, 21398432]

約数ペア:

[(1, 21398432), (2, 10699216), (4, 5349608), (8, 2674804), (11, 1945312), (16, 1337402), (22, 972656), (31, 690272), (32, 668701), (37, 578336), (44, 486328), (53, 403744), (62, 345136), (74, 289168), (88, 243164), (106, 201872), (124, 172568), (148, 144584), (176, 121582), (212, 100936), (248, 86284), (296, 72292), (341, 62752), (352, 60791), (407, 52576), (424, 50468), (496, 43142), (583, 36704), (592, 36146), (682, 31376), (814, 26288), (848, 25234), (992, 21571), (1147, 18656), (1166, 18352), (1184, 18073), (1364, 15688), (1628, 13144), (1643, 13024), (1696, 12617), (1961, 10912), (2294, 9328), (2332, 9176), (2728, 7844), (3256, 6572), (3286, 6512), (3922, 5456), (4588, 4664)]