420156747

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{2161}}^1$

素因数の和:2568

約数の個数: 32

約数和(自身を含む): 657248000

約数和(自身を除く): 237091253

約数列:

[1, 3, 9, 19, 27, 57, 171, 379, 513, 1137, 2161, 3411, 6483, 7201, 10233, 19449, 21603, 41059, 58347, 64809, 123177, 194427, 369531, 819019, 1108593, 2457057, 7371171, 15561361, 22113513, 46684083, 140052249, 420156747]

約数ペア:

[(1, 420156747), (3, 140052249), (9, 46684083), (19, 22113513), (27, 15561361), (57, 7371171), (171, 2457057), (379, 1108593), (513, 819019), (1137, 369531), (2161, 194427), (3411, 123177), (6483, 64809), (7201, 58347), (10233, 41059), (19449, 21603)]