28641753

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{569}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 51217920

約数和(自身を除く): 22576167

約数列:

[1, 3, 7, 9, 17, 21, 47, 51, 63, 119, 141, 153, 329, 357, 423, 569, 799, 987, 1071, 1707, 2397, 2961, 3983, 5121, 5593, 7191, 9673, 11949, 16779, 26743, 29019, 35847, 50337, 67711, 80229, 87057, 187201, 203133, 240687, 454631, 561603, 609399, 1363893, 1684809, 3182417, 4091679, 9547251, 28641753]

約数ペア:

[(1, 28641753), (3, 9547251), (7, 4091679), (9, 3182417), (17, 1684809), (21, 1363893), (47, 609399), (51, 561603), (63, 454631), (119, 240687), (141, 203133), (153, 187201), (329, 87057), (357, 80229), (423, 67711), (569, 50337), (799, 35847), (987, 29019), (1071, 26743), (1707, 16779), (2397, 11949), (2961, 9673), (3983, 7191), (5121, 5593)]