28894908

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{313}}^1$

素因数の和:491

約数の個数: 72

約数和(自身を含む): 79180752

約数和(自身を除く): 50285844

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 157, 196, 294, 313, 314, 471, 588, 626, 628, 939, 942, 1099, 1252, 1878, 1884, 2191, 2198, 3297, 3756, 4382, 4396, 6573, 6594, 7693, 8764, 13146, 13188, 15337, 15386, 23079, 26292, 30674, 30772, 46011, 46158, 49141, 61348, 92022, 92316, 98282, 147423, 184044, 196564, 294846, 343987, 589692, 687974, 1031961, 1375948, 2063922, 2407909, 4127844, 4815818, 7223727, 9631636, 14447454, 28894908]

約数ペア:

[(1, 28894908), (2, 14447454), (3, 9631636), (4, 7223727), (6, 4815818), (7, 4127844), (12, 2407909), (14, 2063922), (21, 1375948), (28, 1031961), (42, 687974), (49, 589692), (84, 343987), (98, 294846), (147, 196564), (157, 184044), (196, 147423), (294, 98282), (313, 92316), (314, 92022), (471, 61348), (588, 49141), (626, 46158), (628, 46011), (939, 30772), (942, 30674), (1099, 26292), (1252, 23079), (1878, 15386), (1884, 15337), (2191, 13188), (2198, 13146), (3297, 8764), (3756, 7693), (4382, 6594), (4396, 6573)]