20573964

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:367

約数の個数: 72

約数和(自身を含む): 54486432

約数和(自身を除く): 33912468

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 53, 82, 106, 123, 159, 164, 212, 246, 263, 318, 369, 477, 492, 526, 636, 738, 789, 954, 1052, 1476, 1578, 1908, 2173, 2367, 3156, 4346, 4734, 6519, 8692, 9468, 10783, 13038, 13939, 19557, 21566, 26076, 27878, 32349, 39114, 41817, 43132, 55756, 64698, 78228, 83634, 97047, 125451, 129396, 167268, 194094, 250902, 388188, 501804, 571499, 1142998, 1714497, 2285996, 3428994, 5143491, 6857988, 10286982, 20573964]

約数ペア:

[(1, 20573964), (2, 10286982), (3, 6857988), (4, 5143491), (6, 3428994), (9, 2285996), (12, 1714497), (18, 1142998), (36, 571499), (41, 501804), (53, 388188), (82, 250902), (106, 194094), (123, 167268), (159, 129396), (164, 125451), (212, 97047), (246, 83634), (263, 78228), (318, 64698), (369, 55756), (477, 43132), (492, 41817), (526, 39114), (636, 32349), (738, 27878), (789, 26076), (954, 21566), (1052, 19557), (1476, 13939), (1578, 13038), (1908, 10783), (2173, 9468), (2367, 8692), (3156, 6519), (4346, 4734)]