18972975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 36426240

約数和(自身を除く): 17453265

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 71, 75, 105, 175, 213, 355, 497, 509, 525, 1065, 1491, 1527, 1775, 2485, 2545, 3563, 5325, 7455, 7635, 10689, 12425, 12725, 17815, 36139, 37275, 38175, 53445, 89075, 108417, 180695, 252973, 267225, 542085, 758919, 903475, 1264865, 2710425, 3794595, 6324325, 18972975]

約数ペア:

[(1, 18972975), (3, 6324325), (5, 3794595), (7, 2710425), (15, 1264865), (21, 903475), (25, 758919), (35, 542085), (71, 267225), (75, 252973), (105, 180695), (175, 108417), (213, 89075), (355, 53445), (497, 38175), (509, 37275), (525, 36139), (1065, 17815), (1491, 12725), (1527, 12425), (1775, 10689), (2485, 7635), (2545, 7455), (3563, 5325)]