20885021806

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:387

約数の個数: 96

約数和(自身を含む): 36894064896

約数和(自身を除く): 16009043090

約数列:

[1, 2, 11, 19, 22, 38, 103, 121, 206, 209, 211, 242, 361, 418, 422, 722, 1133, 1331, 1957, 2266, 2299, 2321, 2662, 3914, 3971, 4009, 4598, 4642, 7942, 8018, 12463, 21527, 21733, 24926, 25289, 25531, 37183, 43054, 43466, 43681, 44099, 50578, 51062, 74366, 76171, 87362, 88198, 137093, 152342, 236797, 239063, 274186, 280841, 409013, 412927, 473594, 478126, 480491, 485089, 561682, 818026, 825854, 837881, 960982, 970178, 1675762, 2604767, 2629693, 4499143, 4542197, 5209534, 5259386, 5335979, 7845613, 8998286, 9084394, 9216691, 10671958, 15691226, 18433382, 28926623, 49490573, 49964167, 57853246, 86301743, 98981146, 99928334, 101383601, 172603486, 202767202, 549605837, 949319173, 1099211674, 1898638346, 10442510903, 20885021806]

約数ペア:

[(1, 20885021806), (2, 10442510903), (11, 1898638346), (19, 1099211674), (22, 949319173), (38, 549605837), (103, 202767202), (121, 172603486), (206, 101383601), (209, 99928334), (211, 98981146), (242, 86301743), (361, 57853246), (418, 49964167), (422, 49490573), (722, 28926623), (1133, 18433382), (1331, 15691226), (1957, 10671958), (2266, 9216691), (2299, 9084394), (2321, 8998286), (2662, 7845613), (3914, 5335979), (3971, 5259386), (4009, 5209534), (4598, 4542197), (4642, 4499143), (7942, 2629693), (8018, 2604767), (12463, 1675762), (21527, 970178), (21733, 960982), (24926, 837881), (25289, 825854), (25531, 818026), (37183, 561682), (43054, 485089), (43466, 480491), (43681, 478126), (44099, 473594), (50578, 412927), (51062, 409013), (74366, 280841), (76171, 274186), (87362, 239063), (88198, 236797), (137093, 152342)]