28563921

素因数分解:

$3^5\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 45497088

約数和(自身を除く): 16933167

約数列:

[1, 3, 9, 27, 41, 47, 61, 81, 123, 141, 183, 243, 369, 423, 549, 1107, 1269, 1647, 1927, 2501, 2867, 3321, 3807, 4941, 5781, 7503, 8601, 9963, 11421, 14823, 17343, 22509, 25803, 52029, 67527, 77409, 117547, 156087, 202581, 232227, 352641, 468261, 607743, 696681, 1057923, 3173769, 9521307, 28563921]

約数ペア:

[(1, 28563921), (3, 9521307), (9, 3173769), (27, 1057923), (41, 696681), (47, 607743), (61, 468261), (81, 352641), (123, 232227), (141, 202581), (183, 156087), (243, 117547), (369, 77409), (423, 67527), (549, 52029), (1107, 25803), (1269, 22509), (1647, 17343), (1927, 14823), (2501, 11421), (2867, 9963), (3321, 8601), (3807, 7503), (4941, 5781)]