20999788944

素因数分解:

$2^4\times 3^1\times {\mathrm{1613}}^1\times {\mathrm{271231}}^1$

素因数の和:272855

約数の個数: 40

約数和(自身を含む): 54283287552

約数和(自身を除く): 33283498608

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 1613, 3226, 4839, 6452, 9678, 12904, 19356, 25808, 38712, 77424, 271231, 542462, 813693, 1084924, 1627386, 2169848, 3254772, 4339696, 6509544, 13019088, 437495603, 874991206, 1312486809, 1749982412, 2624973618, 3499964824, 5249947236, 6999929648, 10499894472, 20999788944]

約数ペア:

[(1, 20999788944), (2, 10499894472), (3, 6999929648), (4, 5249947236), (6, 3499964824), (8, 2624973618), (12, 1749982412), (16, 1312486809), (24, 874991206), (48, 437495603), (1613, 13019088), (3226, 6509544), (4839, 4339696), (6452, 3254772), (9678, 2169848), (12904, 1627386), (19356, 1084924), (25808, 813693), (38712, 542462), (77424, 271231)]