21285362

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:650

約数の個数: 32

約数和(自身を含む): 38188800

約数和(自身を除く): 16903438

約数列:

[1, 2, 7, 14, 29, 58, 103, 203, 206, 406, 509, 721, 1018, 1442, 2987, 3563, 5974, 7126, 14761, 20909, 29522, 41818, 52427, 103327, 104854, 206654, 366989, 733978, 1520383, 3040766, 10642681, 21285362]

約数ペア:

[(1, 21285362), (2, 10642681), (7, 3040766), (14, 1520383), (29, 733978), (58, 366989), (103, 206654), (203, 104854), (206, 103327), (406, 52427), (509, 41818), (721, 29522), (1018, 20909), (1442, 14761), (2987, 7126), (3563, 5974)]