21005932008

素因数分解:

$2^3\times 3^1\times {\mathrm{167}}^1\times {\mathrm{257}}^1\times {\mathrm{20393}}^1$

素因数の和:20826

約数の個数: 64

約数和(自身を含む): 53037452160

約数和(自身を除く): 32031520152

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 167, 257, 334, 501, 514, 668, 771, 1002, 1028, 1336, 1542, 2004, 2056, 3084, 4008, 6168, 20393, 40786, 42919, 61179, 81572, 85838, 122358, 128757, 163144, 171676, 244716, 257514, 343352, 489432, 515028, 1030056, 3405631, 5241001, 6811262, 10216893, 10482002, 13622524, 15723003, 20433786, 20964004, 27245048, 31446006, 40867572, 41928008, 62892012, 81735144, 125784024, 875247167, 1750494334, 2625741501, 3500988668, 5251483002, 7001977336, 10502966004, 21005932008]

約数ペア:

[(1, 21005932008), (2, 10502966004), (3, 7001977336), (4, 5251483002), (6, 3500988668), (8, 2625741501), (12, 1750494334), (24, 875247167), (167, 125784024), (257, 81735144), (334, 62892012), (501, 41928008), (514, 40867572), (668, 31446006), (771, 27245048), (1002, 20964004), (1028, 20433786), (1336, 15723003), (1542, 13622524), (2004, 10482002), (2056, 10216893), (3084, 6811262), (4008, 5241001), (6168, 3405631), (20393, 1030056), (40786, 515028), (42919, 489432), (61179, 343352), (81572, 257514), (85838, 244716), (122358, 171676), (128757, 163144)]