21503522012

素因数分解:

$2^2\times 7^3\times {\mathrm{487}}^1\times {\mathrm{32183}}^1$

素因数の和:32695

約数の個数: 48

約数和(自身を含む): 43976217600

約数和(自身を除く): 22472695588

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 487, 686, 974, 1372, 1948, 3409, 6818, 13636, 23863, 32183, 47726, 64366, 95452, 128732, 167041, 225281, 334082, 450562, 668164, 901124, 1576967, 3153934, 6307868, 11038769, 15673121, 22077538, 31346242, 44155076, 62692484, 109711847, 219423694, 438847388, 767982929, 1535965858, 3071931716, 5375880503, 10751761006, 21503522012]

約数ペア:

[(1, 21503522012), (2, 10751761006), (4, 5375880503), (7, 3071931716), (14, 1535965858), (28, 767982929), (49, 438847388), (98, 219423694), (196, 109711847), (343, 62692484), (487, 44155076), (686, 31346242), (974, 22077538), (1372, 15673121), (1948, 11038769), (3409, 6307868), (6818, 3153934), (13636, 1576967), (23863, 901124), (32183, 668164), (47726, 450562), (64366, 334082), (95452, 225281), (128732, 167041)]