21268676

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1$

素因数の和:169

約数の個数: 72

約数和(自身を含む): 46597824

約数和(自身を除く): 25329148

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 44, 52, 76, 103, 143, 206, 209, 247, 286, 361, 412, 418, 494, 572, 722, 836, 988, 1133, 1339, 1444, 1957, 2266, 2678, 2717, 3914, 3971, 4532, 4693, 5356, 5434, 7828, 7942, 9386, 10868, 14729, 15884, 18772, 21527, 25441, 29458, 37183, 43054, 50882, 51623, 58916, 74366, 86108, 101764, 103246, 148732, 206492, 279851, 409013, 483379, 559702, 818026, 966758, 1119404, 1636052, 1933516, 5317169, 10634338, 21268676]

約数ペア:

[(1, 21268676), (2, 10634338), (4, 5317169), (11, 1933516), (13, 1636052), (19, 1119404), (22, 966758), (26, 818026), (38, 559702), (44, 483379), (52, 409013), (76, 279851), (103, 206492), (143, 148732), (206, 103246), (209, 101764), (247, 86108), (286, 74366), (361, 58916), (412, 51623), (418, 50882), (494, 43054), (572, 37183), (722, 29458), (836, 25441), (988, 21527), (1133, 18772), (1339, 15884), (1444, 14729), (1957, 10868), (2266, 9386), (2678, 7942), (2717, 7828), (3914, 5434), (3971, 5356), (4532, 4693)]