18990234

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:336

約数の個数: 64

約数和(自身を含む): 45158400

約数和(自身を除く): 26168166

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 83, 114, 166, 171, 223, 249, 342, 446, 498, 513, 669, 747, 1026, 1338, 1494, 1577, 2007, 2241, 3154, 4014, 4237, 4482, 4731, 6021, 8474, 9462, 12042, 12711, 14193, 18509, 25422, 28386, 37018, 38133, 42579, 55527, 76266, 85158, 111054, 114399, 166581, 228798, 333162, 351671, 499743, 703342, 999486, 1055013, 2110026, 3165039, 6330078, 9495117, 18990234]

約数ペア:

[(1, 18990234), (2, 9495117), (3, 6330078), (6, 3165039), (9, 2110026), (18, 1055013), (19, 999486), (27, 703342), (38, 499743), (54, 351671), (57, 333162), (83, 228798), (114, 166581), (166, 114399), (171, 111054), (223, 85158), (249, 76266), (342, 55527), (446, 42579), (498, 38133), (513, 37018), (669, 28386), (747, 25422), (1026, 18509), (1338, 14193), (1494, 12711), (1577, 12042), (2007, 9462), (2241, 8474), (3154, 6021), (4014, 4731), (4237, 4482)]