61828641

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 112394880

約数和(自身を除く): 50566239

約数列:

[1, 3, 7, 9, 19, 21, 47, 49, 57, 63, 133, 141, 147, 157, 171, 329, 399, 423, 441, 471, 893, 931, 987, 1099, 1197, 1413, 2303, 2679, 2793, 2961, 2983, 3297, 6251, 6909, 7379, 7693, 8037, 8379, 8949, 9891, 18753, 20727, 20881, 22137, 23079, 26847, 43757, 51653, 56259, 62643, 66411, 69237, 131271, 140201, 146167, 154959, 187929, 361571, 393813, 420603, 438501, 464877, 981407, 1084713, 1261809, 1315503, 2944221, 3254139, 6869849, 8832663, 20609547, 61828641]

約数ペア:

[(1, 61828641), (3, 20609547), (7, 8832663), (9, 6869849), (19, 3254139), (21, 2944221), (47, 1315503), (49, 1261809), (57, 1084713), (63, 981407), (133, 464877), (141, 438501), (147, 420603), (157, 393813), (171, 361571), (329, 187929), (399, 154959), (423, 146167), (441, 140201), (471, 131271), (893, 69237), (931, 66411), (987, 62643), (1099, 56259), (1197, 51653), (1413, 43757), (2303, 26847), (2679, 23079), (2793, 22137), (2961, 20881), (2983, 20727), (3297, 18753), (6251, 9891), (6909, 8949), (7379, 8379), (7693, 8037)]