19786764

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{307}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 47811456

約数和(自身を除く): 28024692

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 123, 131, 164, 246, 262, 307, 393, 492, 524, 614, 786, 921, 1228, 1572, 1842, 3684, 5371, 10742, 12587, 16113, 21484, 25174, 32226, 37761, 40217, 50348, 64452, 75522, 80434, 120651, 151044, 160868, 241302, 482604, 1648897, 3297794, 4946691, 6595588, 9893382, 19786764]

約数ペア:

[(1, 19786764), (2, 9893382), (3, 6595588), (4, 4946691), (6, 3297794), (12, 1648897), (41, 482604), (82, 241302), (123, 160868), (131, 151044), (164, 120651), (246, 80434), (262, 75522), (307, 64452), (393, 50348), (492, 40217), (524, 37761), (614, 32226), (786, 25174), (921, 21484), (1228, 16113), (1572, 12587), (1842, 10742), (3684, 5371)]