772821

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:95

約数の個数: 40

約数和(自身を含む): 1393920

約数和(自身を除く): 621099

約数列:

[1, 3, 7, 9, 21, 27, 29, 47, 63, 81, 87, 141, 189, 203, 261, 329, 423, 567, 609, 783, 987, 1269, 1363, 1827, 2349, 2961, 3807, 4089, 5481, 8883, 9541, 12267, 16443, 26649, 28623, 36801, 85869, 110403, 257607, 772821]

約数ペア:

[(1, 772821), (3, 257607), (7, 110403), (9, 85869), (21, 36801), (27, 28623), (29, 26649), (47, 16443), (63, 12267), (81, 9541), (87, 8883), (141, 5481), (189, 4089), (203, 3807), (261, 2961), (329, 2349), (423, 1827), (567, 1363), (609, 1269), (783, 987)]