19840212

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{601}}^1$

素因数の和:749

約数の個数: 72

約数和(自身を含む): 57849792

約数和(自身を除く): 38009580

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 131, 252, 262, 393, 524, 601, 786, 917, 1179, 1202, 1572, 1803, 1834, 2358, 2404, 2751, 3606, 3668, 4207, 4716, 5409, 5502, 7212, 8253, 8414, 10818, 11004, 12621, 16506, 16828, 21636, 25242, 33012, 37863, 50484, 75726, 78731, 151452, 157462, 236193, 314924, 472386, 551117, 708579, 944772, 1102234, 1417158, 1653351, 2204468, 2834316, 3306702, 4960053, 6613404, 9920106, 19840212]

約数ペア:

[(1, 19840212), (2, 9920106), (3, 6613404), (4, 4960053), (6, 3306702), (7, 2834316), (9, 2204468), (12, 1653351), (14, 1417158), (18, 1102234), (21, 944772), (28, 708579), (36, 551117), (42, 472386), (63, 314924), (84, 236193), (126, 157462), (131, 151452), (252, 78731), (262, 75726), (393, 50484), (524, 37863), (601, 33012), (786, 25242), (917, 21636), (1179, 16828), (1202, 16506), (1572, 12621), (1803, 11004), (1834, 10818), (2358, 8414), (2404, 8253), (2751, 7212), (3606, 5502), (3668, 5409), (4207, 4716)]