21181944

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2137}}^1$

素因数の和:2212

約数の個数: 64

約数和(自身を含む): 61574400

約数和(自身を除く): 40392456

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 59, 84, 118, 168, 177, 236, 354, 413, 472, 708, 826, 1239, 1416, 1652, 2137, 2478, 3304, 4274, 4956, 6411, 8548, 9912, 12822, 14959, 17096, 25644, 29918, 44877, 51288, 59836, 89754, 119672, 126083, 179508, 252166, 359016, 378249, 504332, 756498, 882581, 1008664, 1512996, 1765162, 2647743, 3025992, 3530324, 5295486, 7060648, 10590972, 21181944]

約数ペア:

[(1, 21181944), (2, 10590972), (3, 7060648), (4, 5295486), (6, 3530324), (7, 3025992), (8, 2647743), (12, 1765162), (14, 1512996), (21, 1008664), (24, 882581), (28, 756498), (42, 504332), (56, 378249), (59, 359016), (84, 252166), (118, 179508), (168, 126083), (177, 119672), (236, 89754), (354, 59836), (413, 51288), (472, 44877), (708, 29918), (826, 25644), (1239, 17096), (1416, 14959), (1652, 12822), (2137, 9912), (2478, 8548), (3304, 6411), (4274, 4956)]