20189925

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4273}}^1$

素因数の和:4299

約数の個数: 48

約数和(自身を含む): 42398080

約数和(自身を除く): 22208155

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4273, 4725, 12819, 21365, 29911, 38457, 64095, 89733, 106825, 115371, 149555, 192285, 269199, 320475, 448665, 576855, 747775, 807597, 961425, 1345995, 2243325, 2884275, 4037985, 6729975, 20189925]

約数ペア:

[(1, 20189925), (3, 6729975), (5, 4037985), (7, 2884275), (9, 2243325), (15, 1345995), (21, 961425), (25, 807597), (27, 747775), (35, 576855), (45, 448665), (63, 320475), (75, 269199), (105, 192285), (135, 149555), (175, 115371), (189, 106825), (225, 89733), (315, 64095), (525, 38457), (675, 29911), (945, 21365), (1575, 12819), (4273, 4725)]