21152272

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{251}}^1$

素因数の和:511

約数の個数: 40

約数和(自身を含む): 43122240

約数和(自身を除く): 21969968

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 229, 251, 368, 458, 502, 916, 1004, 1832, 2008, 3664, 4016, 5267, 5773, 10534, 11546, 21068, 23092, 42136, 46184, 57479, 84272, 92368, 114958, 229916, 459832, 919664, 1322017, 2644034, 5288068, 10576136, 21152272]

約数ペア:

[(1, 21152272), (2, 10576136), (4, 5288068), (8, 2644034), (16, 1322017), (23, 919664), (46, 459832), (92, 229916), (184, 114958), (229, 92368), (251, 84272), (368, 57479), (458, 46184), (502, 42136), (916, 23092), (1004, 21068), (1832, 11546), (2008, 10534), (3664, 5773), (4016, 5267)]