21229120

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:228

約数の個数: 112

約数和(自身を含む): 56985408

約数和(自身を除く): 35756288

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 37, 40, 44, 55, 64, 74, 80, 88, 110, 148, 160, 163, 176, 185, 220, 296, 320, 326, 352, 370, 407, 440, 592, 652, 704, 740, 814, 815, 880, 1184, 1304, 1480, 1628, 1630, 1760, 1793, 2035, 2368, 2608, 2960, 3256, 3260, 3520, 3586, 4070, 5216, 5920, 6031, 6512, 6520, 7172, 8140, 8965, 10432, 11840, 12062, 13024, 13040, 14344, 16280, 17930, 24124, 26048, 26080, 28688, 30155, 32560, 35860, 48248, 52160, 57376, 60310, 65120, 66341, 71720, 96496, 114752, 120620, 130240, 132682, 143440, 192992, 241240, 265364, 286880, 331705, 385984, 482480, 530728, 573760, 663410, 964960, 1061456, 1326820, 1929920, 2122912, 2653640, 4245824, 5307280, 10614560, 21229120]

約数ペア:

[(1, 21229120), (2, 10614560), (4, 5307280), (5, 4245824), (8, 2653640), (10, 2122912), (11, 1929920), (16, 1326820), (20, 1061456), (22, 964960), (32, 663410), (37, 573760), (40, 530728), (44, 482480), (55, 385984), (64, 331705), (74, 286880), (80, 265364), (88, 241240), (110, 192992), (148, 143440), (160, 132682), (163, 130240), (176, 120620), (185, 114752), (220, 96496), (296, 71720), (320, 66341), (326, 65120), (352, 60310), (370, 57376), (407, 52160), (440, 48248), (592, 35860), (652, 32560), (704, 30155), (740, 28688), (814, 26080), (815, 26048), (880, 24124), (1184, 17930), (1304, 16280), (1480, 14344), (1628, 13040), (1630, 13024), (1760, 12062), (1793, 11840), (2035, 10432), (2368, 8965), (2608, 8140), (2960, 7172), (3256, 6520), (3260, 6512), (3520, 6031), (3586, 5920), (4070, 5216)]