20154876

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{227}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 55310976

約数和(自身を除く): 35156100

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 151, 196, 227, 294, 302, 453, 454, 588, 604, 681, 906, 908, 1057, 1362, 1589, 1812, 2114, 2724, 3171, 3178, 4228, 4767, 6342, 6356, 7399, 9534, 11123, 12684, 14798, 19068, 22197, 22246, 29596, 33369, 34277, 44394, 44492, 66738, 68554, 88788, 102831, 133476, 137108, 205662, 239939, 411324, 479878, 719817, 959756, 1439634, 1679573, 2879268, 3359146, 5038719, 6718292, 10077438, 20154876]

約数ペア:

[(1, 20154876), (2, 10077438), (3, 6718292), (4, 5038719), (6, 3359146), (7, 2879268), (12, 1679573), (14, 1439634), (21, 959756), (28, 719817), (42, 479878), (49, 411324), (84, 239939), (98, 205662), (147, 137108), (151, 133476), (196, 102831), (227, 88788), (294, 68554), (302, 66738), (453, 44492), (454, 44394), (588, 34277), (604, 33369), (681, 29596), (906, 22246), (908, 22197), (1057, 19068), (1362, 14798), (1589, 12684), (1812, 11123), (2114, 9534), (2724, 7399), (3171, 6356), (3178, 6342), (4228, 4767)]