219907971

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{577}}^1$

素因数の和:700

約数の個数: 48

約数和(自身を含む): 350573184

約数和(自身を除く): 130665213

約数列:

[1, 3, 9, 17, 47, 51, 53, 141, 153, 159, 423, 477, 577, 799, 901, 1731, 2397, 2491, 2703, 5193, 7191, 7473, 8109, 9809, 22419, 27119, 29427, 30581, 42347, 81357, 88281, 91743, 127041, 244071, 275229, 381123, 461023, 519877, 1383069, 1437307, 1559631, 4149207, 4311921, 4678893, 12935763, 24434219, 73302657, 219907971]

約数ペア:

[(1, 219907971), (3, 73302657), (9, 24434219), (17, 12935763), (47, 4678893), (51, 4311921), (53, 4149207), (141, 1559631), (153, 1437307), (159, 1383069), (423, 519877), (477, 461023), (577, 381123), (799, 275229), (901, 244071), (1731, 127041), (2397, 91743), (2491, 88281), (2703, 81357), (5193, 42347), (7191, 30581), (7473, 29427), (8109, 27119), (9809, 22419)]