19921538

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{823}}^1$

素因数の和:871

約数の個数: 48

約数和(自身を含む): 39453120

約数和(自身を除く): 19531582

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 49, 91, 98, 133, 182, 247, 266, 494, 637, 823, 931, 1274, 1646, 1729, 1862, 3458, 5761, 10699, 11522, 12103, 15637, 21398, 24206, 31274, 40327, 74893, 80654, 109459, 149786, 203281, 218918, 406562, 524251, 766213, 1048502, 1422967, 1532426, 2845934, 9960769, 19921538]

約数ペア:

[(1, 19921538), (2, 9960769), (7, 2845934), (13, 1532426), (14, 1422967), (19, 1048502), (26, 766213), (38, 524251), (49, 406562), (91, 218918), (98, 203281), (133, 149786), (182, 109459), (247, 80654), (266, 74893), (494, 40327), (637, 31274), (823, 24206), (931, 21398), (1274, 15637), (1646, 12103), (1729, 11522), (1862, 10699), (3458, 5761)]