21000304798

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{613}}^1\times {\mathrm{2671}}^1$

素因数の和:3361

約数の個数: 48

約数和(自身を含む): 35348539968

約数和(自身を除く): 14348235170

約数列:

[1, 2, 11, 22, 53, 106, 121, 242, 583, 613, 1166, 1226, 2671, 5342, 6413, 6743, 12826, 13486, 29381, 32489, 58762, 64978, 74173, 141563, 148346, 283126, 323191, 357379, 646382, 714758, 1557193, 1637323, 3114386, 3274646, 3931169, 7862338, 17129123, 18010553, 34258246, 36021106, 86778119, 173556238, 198116083, 396232166, 954559309, 1909118618, 10500152399, 21000304798]

約数ペア:

[(1, 21000304798), (2, 10500152399), (11, 1909118618), (22, 954559309), (53, 396232166), (106, 198116083), (121, 173556238), (242, 86778119), (583, 36021106), (613, 34258246), (1166, 18010553), (1226, 17129123), (2671, 7862338), (5342, 3931169), (6413, 3274646), (6743, 3114386), (12826, 1637323), (13486, 1557193), (29381, 714758), (32489, 646382), (58762, 357379), (64978, 323191), (74173, 283126), (141563, 148346)]