21821072

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2141}}^1$

素因数の和:2176

約数の個数: 60

約数和(自身を含む): 52988796

約数和(自身を除く): 31167724

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 364, 392, 637, 728, 784, 1274, 1456, 2141, 2548, 4282, 5096, 8564, 10192, 14987, 17128, 27833, 29974, 34256, 55666, 59948, 104909, 111332, 119896, 194831, 209818, 222664, 239792, 389662, 419636, 445328, 779324, 839272, 1363817, 1558648, 1678544, 2727634, 3117296, 5455268, 10910536, 21821072]

約数ペア:

[(1, 21821072), (2, 10910536), (4, 5455268), (7, 3117296), (8, 2727634), (13, 1678544), (14, 1558648), (16, 1363817), (26, 839272), (28, 779324), (49, 445328), (52, 419636), (56, 389662), (91, 239792), (98, 222664), (104, 209818), (112, 194831), (182, 119896), (196, 111332), (208, 104909), (364, 59948), (392, 55666), (637, 34256), (728, 29974), (784, 27833), (1274, 17128), (1456, 14987), (2141, 10192), (2548, 8564), (4282, 5096)]