21272172

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1181}}^1$

素因数の和:1286

約数の個数: 48

約数和(自身を含む): 52953600

約数和(自身を除く): 31681428

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 79, 114, 158, 228, 237, 316, 474, 948, 1181, 1501, 2362, 3002, 3543, 4503, 4724, 6004, 7086, 9006, 14172, 18012, 22439, 44878, 67317, 89756, 93299, 134634, 186598, 269268, 279897, 373196, 559794, 1119588, 1772681, 3545362, 5318043, 7090724, 10636086, 21272172]

約数ペア:

[(1, 21272172), (2, 10636086), (3, 7090724), (4, 5318043), (6, 3545362), (12, 1772681), (19, 1119588), (38, 559794), (57, 373196), (76, 279897), (79, 269268), (114, 186598), (158, 134634), (228, 93299), (237, 89756), (316, 67317), (474, 44878), (948, 22439), (1181, 18012), (1501, 14172), (2362, 9006), (3002, 7086), (3543, 6004), (4503, 4724)]