21400042

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 36175680

約数和(自身を除く): 14775638

約数列:

[1, 2, 17, 19, 34, 38, 157, 211, 314, 323, 422, 646, 2669, 2983, 3587, 4009, 5338, 5966, 7174, 8018, 33127, 50711, 66254, 68153, 101422, 136306, 563159, 629413, 1126318, 1258826, 10700021, 21400042]

約数ペア:

[(1, 21400042), (2, 10700021), (17, 1258826), (19, 1126318), (34, 629413), (38, 563159), (157, 136306), (211, 101422), (314, 68153), (323, 66254), (422, 50711), (646, 33127), (2669, 8018), (2983, 7174), (3587, 5966), (4009, 5338)]