221519487

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 364262400

約数和(自身を除く): 142742913

約数列:

[1, 3, 7, 21, 29, 61, 67, 87, 89, 183, 201, 203, 267, 427, 469, 609, 623, 1281, 1407, 1769, 1869, 1943, 2581, 4087, 5307, 5429, 5829, 5963, 7743, 12261, 12383, 13601, 16287, 17889, 18067, 28609, 37149, 38003, 40803, 41741, 54201, 85827, 114009, 118523, 125223, 157441, 172927, 355569, 363743, 472323, 518781, 829661, 1091229, 1102087, 1210489, 2488983, 2546201, 3306261, 3631467, 7638603, 10548547, 31645641, 73839829, 221519487]

約数ペア:

[(1, 221519487), (3, 73839829), (7, 31645641), (21, 10548547), (29, 7638603), (61, 3631467), (67, 3306261), (87, 2546201), (89, 2488983), (183, 1210489), (201, 1102087), (203, 1091229), (267, 829661), (427, 518781), (469, 472323), (609, 363743), (623, 355569), (1281, 172927), (1407, 157441), (1769, 125223), (1869, 118523), (1943, 114009), (2581, 85827), (4087, 54201), (5307, 41741), (5429, 40803), (5829, 38003), (5963, 37149), (7743, 28609), (12261, 18067), (12383, 17889), (13601, 16287)]