21262553572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1\times {\mathrm{10141}}^1$

素因数の和:10880

約数の個数: 48

約数和(自身を含む): 40794288304

約数和(自身を除く): 19531734732

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 661, 793, 1322, 1586, 2644, 3172, 8593, 10141, 17186, 20282, 34372, 40321, 40564, 80642, 131833, 161284, 263666, 524173, 527332, 618601, 1048346, 1237202, 2096692, 2474404, 6703201, 8041813, 13406402, 16083626, 26812804, 32167252, 87141613, 174283226, 348566452, 408895261, 817790522, 1635581044, 5315638393, 10631276786, 21262553572]

約数ペア:

[(1, 21262553572), (2, 10631276786), (4, 5315638393), (13, 1635581044), (26, 817790522), (52, 408895261), (61, 348566452), (122, 174283226), (244, 87141613), (661, 32167252), (793, 26812804), (1322, 16083626), (1586, 13406402), (2644, 8041813), (3172, 6703201), (8593, 2474404), (10141, 2096692), (17186, 1237202), (20282, 1048346), (34372, 618601), (40321, 527332), (40564, 524173), (80642, 263666), (131833, 161284)]