20484996

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{461}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 57228864

約数和(自身を除く): 36743868

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 69, 84, 92, 138, 161, 276, 322, 461, 483, 529, 644, 922, 966, 1058, 1383, 1587, 1844, 1932, 2116, 2766, 3174, 3227, 3703, 5532, 6348, 6454, 7406, 9681, 10603, 11109, 12908, 14812, 19362, 21206, 22218, 31809, 38724, 42412, 44436, 63618, 74221, 127236, 148442, 222663, 243869, 296884, 445326, 487738, 731607, 890652, 975476, 1463214, 1707083, 2926428, 3414166, 5121249, 6828332, 10242498, 20484996]

約数ペア:

[(1, 20484996), (2, 10242498), (3, 6828332), (4, 5121249), (6, 3414166), (7, 2926428), (12, 1707083), (14, 1463214), (21, 975476), (23, 890652), (28, 731607), (42, 487738), (46, 445326), (69, 296884), (84, 243869), (92, 222663), (138, 148442), (161, 127236), (276, 74221), (322, 63618), (461, 44436), (483, 42412), (529, 38724), (644, 31809), (922, 22218), (966, 21206), (1058, 19362), (1383, 14812), (1587, 12908), (1844, 11109), (1932, 10603), (2116, 9681), (2766, 7406), (3174, 6454), (3227, 6348), (3703, 5532)]