19912914

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:340

約数の個数: 72

約数和(自身を含む): 50897808

約数和(自身を除く): 30984894

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 107, 126, 147, 211, 214, 294, 321, 422, 441, 633, 642, 749, 882, 963, 1266, 1477, 1498, 1899, 1926, 2247, 2954, 3798, 4431, 4494, 5243, 6741, 8862, 10339, 10486, 13293, 13482, 15729, 20678, 22577, 26586, 31017, 31458, 45154, 47187, 62034, 67731, 93051, 94374, 135462, 158039, 186102, 203193, 316078, 406386, 474117, 948234, 1106273, 1422351, 2212546, 2844702, 3318819, 6637638, 9956457, 19912914]

約数ペア:

[(1, 19912914), (2, 9956457), (3, 6637638), (6, 3318819), (7, 2844702), (9, 2212546), (14, 1422351), (18, 1106273), (21, 948234), (42, 474117), (49, 406386), (63, 316078), (98, 203193), (107, 186102), (126, 158039), (147, 135462), (211, 94374), (214, 93051), (294, 67731), (321, 62034), (422, 47187), (441, 45154), (633, 31458), (642, 31017), (749, 26586), (882, 22577), (963, 20678), (1266, 15729), (1477, 13482), (1498, 13293), (1899, 10486), (1926, 10339), (2247, 8862), (2954, 6741), (3798, 5243), (4431, 4494)]