21086468728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{877}}^1\times {\mathrm{3167}}^1$

素因数の和:4136

約数の個数: 64

約数和(自身を含む): 43224572160

約数和(自身を除く): 22138103432

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 877, 949, 1754, 1898, 3167, 3508, 3796, 6334, 7016, 7592, 11401, 12668, 22802, 25336, 41171, 45604, 64021, 82342, 91208, 128042, 164684, 231191, 256084, 329368, 462382, 512168, 832273, 924764, 1664546, 1849528, 2777459, 3005483, 3329092, 5554918, 6010966, 6658184, 11109836, 12021932, 22219672, 24043864, 36106967, 72213934, 144427868, 202754507, 288855736, 405509014, 811018028, 1622036056, 2635808591, 5271617182, 10543234364, 21086468728]

約数ペア:

[(1, 21086468728), (2, 10543234364), (4, 5271617182), (8, 2635808591), (13, 1622036056), (26, 811018028), (52, 405509014), (73, 288855736), (104, 202754507), (146, 144427868), (292, 72213934), (584, 36106967), (877, 24043864), (949, 22219672), (1754, 12021932), (1898, 11109836), (3167, 6658184), (3508, 6010966), (3796, 5554918), (6334, 3329092), (7016, 3005483), (7592, 2777459), (11401, 1849528), (12668, 1664546), (22802, 924764), (25336, 832273), (41171, 512168), (45604, 462382), (64021, 329368), (82342, 256084), (91208, 231191), (128042, 164684)]