21999528

素因数分解:

$2^3\times 3^2\times {\mathrm{61}}^1\times {\mathrm{5009}}^1$

素因数の和:5082

約数の個数: 48

約数和(自身を含む): 60570900

約数和(自身を除く): 38571372

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 61, 72, 122, 183, 244, 366, 488, 549, 732, 1098, 1464, 2196, 4392, 5009, 10018, 15027, 20036, 30054, 40072, 45081, 60108, 90162, 120216, 180324, 305549, 360648, 611098, 916647, 1222196, 1833294, 2444392, 2749941, 3666588, 5499882, 7333176, 10999764, 21999528]

約数ペア:

[(1, 21999528), (2, 10999764), (3, 7333176), (4, 5499882), (6, 3666588), (8, 2749941), (9, 2444392), (12, 1833294), (18, 1222196), (24, 916647), (36, 611098), (61, 360648), (72, 305549), (122, 180324), (183, 120216), (244, 90162), (366, 60108), (488, 45081), (549, 40072), (732, 30054), (1098, 20036), (1464, 15027), (2196, 10018), (4392, 5009)]