20122521678

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{248371}}^1$

素因数の和:249029

約数の個数: 48

約数和(自身を含む): 49904889216

約数和(自身を除く): 29782367538

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 643, 1286, 1929, 3858, 4501, 5787, 9002, 11574, 13503, 27006, 40509, 81018, 248371, 496742, 745113, 1490226, 1738597, 2235339, 3477194, 4470678, 5215791, 10431582, 15647373, 31294746, 159702553, 319405106, 479107659, 958215318, 1117917871, 1437322977, 2235835742, 2874645954, 3353753613, 6707507226, 10061260839, 20122521678]

約数ペア:

[(1, 20122521678), (2, 10061260839), (3, 6707507226), (6, 3353753613), (7, 2874645954), (9, 2235835742), (14, 1437322977), (18, 1117917871), (21, 958215318), (42, 479107659), (63, 319405106), (126, 159702553), (643, 31294746), (1286, 15647373), (1929, 10431582), (3858, 5215791), (4501, 4470678), (5787, 3477194), (9002, 2235339), (11574, 1738597), (13503, 1490226), (27006, 745113), (40509, 496742), (81018, 248371)]