20423898

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 96

約数和(自身を含む): 52228800

約数和(自身を除く): 31804902

約数列:

[1, 2, 3, 6, 9, 11, 18, 19, 22, 33, 38, 57, 61, 66, 89, 99, 114, 122, 171, 178, 183, 198, 209, 267, 342, 366, 418, 534, 549, 627, 671, 801, 979, 1098, 1159, 1254, 1342, 1602, 1691, 1881, 1958, 2013, 2318, 2937, 3382, 3477, 3762, 4026, 5073, 5429, 5874, 6039, 6954, 8811, 10146, 10431, 10858, 12078, 12749, 15219, 16287, 17622, 18601, 20862, 25498, 30438, 32574, 37202, 38247, 48861, 55803, 59719, 76494, 97722, 103151, 111606, 114741, 119438, 167409, 179157, 206302, 229482, 309453, 334818, 358314, 537471, 618906, 928359, 1074942, 1134661, 1856718, 2269322, 3403983, 6807966, 10211949, 20423898]

約数ペア:

[(1, 20423898), (2, 10211949), (3, 6807966), (6, 3403983), (9, 2269322), (11, 1856718), (18, 1134661), (19, 1074942), (22, 928359), (33, 618906), (38, 537471), (57, 358314), (61, 334818), (66, 309453), (89, 229482), (99, 206302), (114, 179157), (122, 167409), (171, 119438), (178, 114741), (183, 111606), (198, 103151), (209, 97722), (267, 76494), (342, 59719), (366, 55803), (418, 48861), (534, 38247), (549, 37202), (627, 32574), (671, 30438), (801, 25498), (979, 20862), (1098, 18601), (1159, 17622), (1254, 16287), (1342, 15219), (1602, 12749), (1691, 12078), (1881, 10858), (1958, 10431), (2013, 10146), (2318, 8811), (2937, 6954), (3382, 6039), (3477, 5874), (3762, 5429), (4026, 5073)]