21964532

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 42517440

約数和(自身を除く): 20552908

約数列:

[1, 2, 4, 19, 37, 38, 73, 74, 76, 107, 146, 148, 214, 292, 428, 703, 1387, 1406, 2033, 2701, 2774, 2812, 3959, 4066, 5402, 5548, 7811, 7918, 8132, 10804, 15622, 15836, 31244, 51319, 75221, 102638, 148409, 150442, 205276, 289007, 296818, 300884, 578014, 593636, 1156028, 5491133, 10982266, 21964532]

約数ペア:

[(1, 21964532), (2, 10982266), (4, 5491133), (19, 1156028), (37, 593636), (38, 578014), (73, 300884), (74, 296818), (76, 289007), (107, 205276), (146, 150442), (148, 148409), (214, 102638), (292, 75221), (428, 51319), (703, 31244), (1387, 15836), (1406, 15622), (2033, 10804), (2701, 8132), (2774, 7918), (2812, 7811), (3959, 5548), (4066, 5402)]