20697908

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:165

約数の個数: 96

約数和(自身を含む): 49351680

約数和(自身を除く): 28653772

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 59, 67, 68, 77, 118, 119, 134, 154, 187, 236, 238, 268, 308, 374, 413, 469, 476, 649, 737, 748, 826, 938, 1003, 1139, 1298, 1309, 1474, 1652, 1876, 2006, 2278, 2596, 2618, 2948, 3953, 4012, 4543, 4556, 5159, 5236, 7021, 7906, 7973, 9086, 10318, 11033, 12529, 14042, 15812, 15946, 18172, 20636, 22066, 25058, 27671, 28084, 31892, 43483, 44132, 50116, 55342, 67201, 77231, 86966, 87703, 110684, 134402, 154462, 173932, 175406, 268804, 304381, 308924, 350812, 470407, 608762, 739211, 940814, 1217524, 1478422, 1881628, 2956844, 5174477, 10348954, 20697908]

約数ペア:

[(1, 20697908), (2, 10348954), (4, 5174477), (7, 2956844), (11, 1881628), (14, 1478422), (17, 1217524), (22, 940814), (28, 739211), (34, 608762), (44, 470407), (59, 350812), (67, 308924), (68, 304381), (77, 268804), (118, 175406), (119, 173932), (134, 154462), (154, 134402), (187, 110684), (236, 87703), (238, 86966), (268, 77231), (308, 67201), (374, 55342), (413, 50116), (469, 44132), (476, 43483), (649, 31892), (737, 28084), (748, 27671), (826, 25058), (938, 22066), (1003, 20636), (1139, 18172), (1298, 15946), (1309, 15812), (1474, 14042), (1652, 12529), (1876, 11033), (2006, 10318), (2278, 9086), (2596, 7973), (2618, 7906), (2948, 7021), (3953, 5236), (4012, 5159), (4543, 4556)]