19840884

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{823}}^1$

素因数の和:885

約数の個数: 72

約数和(自身を含む): 55234368

約数和(自身を除く): 35393484

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 49, 82, 84, 98, 123, 147, 164, 196, 246, 287, 294, 492, 574, 588, 823, 861, 1148, 1646, 1722, 2009, 2469, 3292, 3444, 4018, 4938, 5761, 6027, 8036, 9876, 11522, 12054, 17283, 23044, 24108, 33743, 34566, 40327, 67486, 69132, 80654, 101229, 120981, 134972, 161308, 202458, 236201, 241962, 404916, 472402, 483924, 708603, 944804, 1417206, 1653407, 2834412, 3306814, 4960221, 6613628, 9920442, 19840884]

約数ペア:

[(1, 19840884), (2, 9920442), (3, 6613628), (4, 4960221), (6, 3306814), (7, 2834412), (12, 1653407), (14, 1417206), (21, 944804), (28, 708603), (41, 483924), (42, 472402), (49, 404916), (82, 241962), (84, 236201), (98, 202458), (123, 161308), (147, 134972), (164, 120981), (196, 101229), (246, 80654), (287, 69132), (294, 67486), (492, 40327), (574, 34566), (588, 33743), (823, 24108), (861, 23044), (1148, 17283), (1646, 12054), (1722, 11522), (2009, 9876), (2469, 8036), (3292, 6027), (3444, 5761), (4018, 4938)]