21926175

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{593}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 39774240

約数和(自身を除く): 17848065

約数列:

[1, 3, 5, 15, 17, 25, 29, 51, 75, 85, 87, 145, 255, 425, 435, 493, 593, 725, 1275, 1479, 1779, 2175, 2465, 2965, 7395, 8895, 10081, 12325, 14825, 17197, 30243, 36975, 44475, 50405, 51591, 85985, 151215, 252025, 257955, 292349, 429925, 756075, 877047, 1289775, 1461745, 4385235, 7308725, 21926175]

約数ペア:

[(1, 21926175), (3, 7308725), (5, 4385235), (15, 1461745), (17, 1289775), (25, 877047), (29, 756075), (51, 429925), (75, 292349), (85, 257955), (87, 252025), (145, 151215), (255, 85985), (425, 51591), (435, 50405), (493, 44475), (593, 36975), (725, 30243), (1275, 17197), (1479, 14825), (1779, 12325), (2175, 10081), (2465, 8895), (2965, 7395)]