21900448

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 45246600

約数和(自身を除く): 23346152

約数列:

[1, 2, 4, 8, 16, 32, 37, 53, 74, 106, 148, 212, 296, 349, 424, 592, 698, 848, 1184, 1396, 1696, 1961, 2792, 3922, 5584, 7844, 11168, 12913, 15688, 18497, 25826, 31376, 36994, 51652, 62752, 73988, 103304, 147976, 206608, 295952, 413216, 591904, 684389, 1368778, 2737556, 5475112, 10950224, 21900448]

約数ペア:

[(1, 21900448), (2, 10950224), (4, 5475112), (8, 2737556), (16, 1368778), (32, 684389), (37, 591904), (53, 413216), (74, 295952), (106, 206608), (148, 147976), (212, 103304), (296, 73988), (349, 62752), (424, 51652), (592, 36994), (698, 31376), (848, 25826), (1184, 18497), (1396, 15688), (1696, 12913), (1961, 11168), (2792, 7844), (3922, 5584)]