71691921

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{593}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 126023040

約数和(自身を除く): 54331119

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 101, 133, 171, 303, 399, 593, 707, 909, 1197, 1779, 1919, 2121, 4151, 5337, 5757, 6363, 11267, 12453, 13433, 17271, 33801, 37359, 40299, 59893, 78869, 101403, 120897, 179679, 236607, 419251, 539037, 709821, 1137967, 1257753, 3413901, 3773259, 7965769, 10241703, 23897307, 71691921]

約数ペア:

[(1, 71691921), (3, 23897307), (7, 10241703), (9, 7965769), (19, 3773259), (21, 3413901), (57, 1257753), (63, 1137967), (101, 709821), (133, 539037), (171, 419251), (303, 236607), (399, 179679), (593, 120897), (707, 101403), (909, 78869), (1197, 59893), (1779, 40299), (1919, 37359), (2121, 33801), (4151, 17271), (5337, 13433), (5757, 12453), (6363, 11267)]