21180896

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3167}}^1$

素因数の和:3207

約数の個数: 48

約数和(自身を含む): 47900160

約数和(自身を除く): 26719264

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 76, 88, 152, 176, 209, 304, 352, 418, 608, 836, 1672, 3167, 3344, 6334, 6688, 12668, 25336, 34837, 50672, 60173, 69674, 101344, 120346, 139348, 240692, 278696, 481384, 557392, 661903, 962768, 1114784, 1323806, 1925536, 2647612, 5295224, 10590448, 21180896]

約数ペア:

[(1, 21180896), (2, 10590448), (4, 5295224), (8, 2647612), (11, 1925536), (16, 1323806), (19, 1114784), (22, 962768), (32, 661903), (38, 557392), (44, 481384), (76, 278696), (88, 240692), (152, 139348), (176, 120346), (209, 101344), (304, 69674), (352, 60173), (418, 50672), (608, 34837), (836, 25336), (1672, 12668), (3167, 6688), (3344, 6334)]